20 And the LORD said unto Moses, Rise up early in the morning, and stand before Pharaoh; lo, he cometh forth to the water; and say unto him, Thus saith the LORD, Let my people go, that they may serve me.   21 Else, if thou wilt not let my people go, behold, I will send swarms of flies upon thee, and upon thy servants, and upon thy people, and into thy houses: and the houses of the Egyptians shall be full of swarms of flies, and also the ground whereon they are.   22 And I will sever in that day the land of Goshen, in which my people dwell, that no swarms of flies shall be there; to the end thou mayest know that I am the LORD in the midst of the earth.   23 And I will put a division between my people and thy people: to morrow shall this sign be.   24 And the LORD did so; and there came a grievous swarm of flies into the house of Pharaoh, and into his servants' houses, and into all the land of Egypt: the land was corrupted by reason of the swarm of flies.   25 And Pharaoh called for Moses and for Aaron, and said, Go ye, sacrifice to your God in the land.   26 And Moses said, It is not meet so to do; for we shall sacrifice the abomination of the Egyptians to the LORD our God: lo, shall we sacrifice the abomination of the Egyptians before their eyes, and will they not stone us?   27 We will go three days' journey into the wilderness, and sacrifice to the LORD our God, as he shall command us.   28 And Pharaoh said, I will let you go, that ye may sacrifice to the LORD your God in the wilderness; only ye shall not go very far away: intreat for me.   29 And Moses said, Behold, I go out from thee, and I will intreat the LORD that the swarms of flies may depart from Pharaoh, from his servants, and from his people, to morrow: but let not Pharaoh deal deceitfully any more in not letting the people go to sacrifice to the LORD.   30 And Moses went out from Pharaoh, and intreated the LORD.   31 And the LORD did according to the word of Moses; and he removed the swarms of flies from Pharaoh, from his servants, and from his people; there remained not one.   32 And Pharaoh hardened his heart at this time also, neither would he let the people go.

      Here is the story of the plague of flies, in which we are told,

      I. How it was threatened, like that of frogs, before it was inflicted. Moses is directed (v. 20) to rise early in the morning, to meet Pharaoh when he came forth to the water, and there to repeat his demands. Note, 1. Those that would bring great things to pass for God and their generation must rise early, and redeem time in the morning. Pharaoh was early up at his superstitious devotions to the river; and shall we be for more sleep and more slumber when any service is to be done which would pass well in our account in the great day? 2. Those that would approve themselves God's faithful servants must not be afraid of the face of man. Moses must stand before Pharaoh, proud as he was, and tell him that which was in the highest degree humbling, must challenge him (if he refused to release his captives) to engage with any army of flies, which would obey God's orders of Pharaoh would not. See a similar threatening, Isa. vii. 18, The Lord will hiss (or whistle) for the fly and the bee, to come and serve his purposes.

      II. How the Egyptians and the Hebrews were to be remarkably distinguished in this plague, v. 22, 23. It is probable that this distinction had not been so manifest and observable in any of the foregoing plagues as it was to be in this. Thus, as the plague of lice was made more convincing than any before it, by its running the magicians aground, so was this, by the distinction made between the Egyptians and the Hebrews. Pharaoh must be made to know that God is the Lord in the midst of the earth; and by this it will be known beyond dispute. 1. Swarms of flies, which seem to us to fly at random, shall be manifestly under the conduct of an intelligent mind, while they are above the direction of any man. "Hither they shall go," says Moses, "and thither they shall not come;" and the performance is punctually according to this appointment, and both, compared, amount to a demonstration that he that said it and he that did it was the same, even a Being of infinite power and wisdom. 2. The servants and worshippers of the great Jehovah shall be preserved from sharing in the common calamities of the place they live in, so that the plague which annoys all their neighbours shall not approach them; and this shall be an incontestable proof that God is the Lord in the midst of the earth. Put both these together, and it appears that the eyes of the Lord run to and fro through the earth, and through the air too, to direct that which to us seems most casual, to serve some great designed end, that he may show himself strong on the behalf of those whose hearts are upright with him, 2 Chron. xvi. 9. Observe how it is repeated: I will put a division between my people and thy people v. 23. Note, The Lord knows those that are his, and will make it appear, perhaps in this world, certainly in the other, that he has set them apart for himself. A day will come when you shall return and discern between the righteous and the wicked (Mal. iii. 18), the sheep and the goats (Matt. xxv. 32; Ezek. xxxiv. 17), though now intermixed.

      III. How it was inflicted, the day after it was threatened: There came a grievous swarm of flies (v. 24), flies of divers sorts, and such as devoured them, Ps. lxxviii. 45. The prince of the power of the air has gloried in being Beelzebub--the god of flies; but here it is proved that even in that he is a pretender and a usurper, for even with swarms of flies God fights against his kingdom and prevails.

      IV. How Pharaoh, upon this attack, sounded a parley, and entered into a treaty with Moses and Aaron about a surrender of his captives: but observe with what reluctance he yields.

      1. He is content they should sacrifice to their God, provided they would do it in the land of Egypt, v. 25. Note, God can extort a toleration of his worship, even from those that are really enemies to it. Pharaoh, under the smart of the rod, is content they should do sacrifice, and will allow liberty of conscience to God's Israel, even in his own land. But Moses will not accept his concession; he cannot do it, v. 26. It would be an abomination to God should they offer the Egyptian sacrifices, and an abomination to the Egyptians should they offer to God their own sacrifices, as they ought; so that they could not sacrifice in the land without incurring the displeasure either of their God or of their task-masters; therefore he insists: We will go three days' journey into the wilderness, v. 27. Note, Those that would offer an acceptable sacrifice to God must, (1.) Separate themselves from the wicked and profane; for we cannot have fellowship both with the Father of lights and with the works of darkness, both with Christ and with Belial, 2 Cor. vi. 14, &c.; Ps. xxvi. 4, 6. (2.) They must retire from the distractions of the world, and get as far as may be from the noise of it. Israel cannot keep the feast of the Lord either among the brick-kilns or among the flesh-pots of Egypt; no, We will go into the wilderness, Hos. ii. 14; Cant. vii. 11. (3.) They must observe the divine appointment: "We will sacrifice as God shall command us, and not otherwise." Though they were in the utmost degree of slavery to Pharaoh, yet in the worship of God, they must observe his commands and not Pharaoh's.

      2. When this proposal is rejected, he consents for them to go into the wilderness, provided they do not go very far away, not so far but that he might fetch them back again, v. 28. It is probable he had heard of their design upon Canaan, and suspected that if once they left Egypt they would never come back again; and therefore, when he is forced to consent that they shall go (the swarms of flies buzzing the necessity in his ears), yet he is not willing that they should go out of his reach. Thus some sinners who, in a pang of conviction, part with their sins, yet are loth they should go very far away; for, when the fright is over, they will return to them again. We observe here a struggle between Pharaoh's convictions and his corruptions; his convictions said, "Let them go;" his corruptions said, "Yet not very far away:" but he sided with his corruptions against his convictions, and this was his ruin. This proposal Moses so far accepted as that he promised the removal of this plague upon it, v. 29. See here, (1.) How ready God is to accept sinners' submissions. Pharaoh does but say, Entreat for me (though it is with regret that he humbles so far), and Moses promises immediately, I will entreat the Lord for thee, that Pharaoh might see what the design of the plague was, not to bring him to ruin, but to bring him to repentance. With what pleasure did God say (1 Kings xxi. 29), Seest thou how Ahab humbles himself? (2.) What need we have to be admonished that we be sincere in our submission: But let not Pharaoh deal deceitfully any more. Those that deal deceitfully are justly suspected, and must be cautioned not to return again to folly, after God has once more spoken peace. Be not deceived, God is not mocked; if we think to put a cheat upon God by a counterfeit repentance, and a fraudulent surrender of ourselves to him, we shall prove, in the end, to have put a fatal cheat upon our own souls.

      Lastly, The issue of all was that God graciously removed the plague (v. 30, 31), but Pharaoh perfidiously returned to his hardness, and would not let the people go, v. 32. His pride would not let him part with such a flower of his crown as his dominion over Israel was, nor his covetousness with such a branch of his revenue as their labours were. Note, Reigning lusts break through the strongest bounds, and make men impudently presumptuous and scandalously perfidious. Let not sin therefore reign; for, if it do, it will betray and hurry us to the grossest absurdities.

      21 And the LORD said unto Moses, Stretch out thine hand toward heaven, that there may be darkness over the land of Egypt, even darkness which may be felt.   22 And Moses stretched forth his hand toward heaven; and there was a thick darkness in all the land of Egypt three days:   23 They saw not one another, neither rose any from his place for three days: but all the children of Israel had light in their dwellings.   24 And Pharaoh called unto Moses, and said, Go ye, serve the LORD; only let your flocks and your herds be stayed: let your little ones also go with you.   25 And Moses said, Thou must give us also sacrifices and burnt offerings, that we may sacrifice unto the LORD our God.   26 Our cattle also shall go with us; there shall not an hoof be left behind; for thereof must we take to serve the LORD our God; and we know not with what we must serve the LORD, until we come thither.   27 But the LORD hardened Pharaoh's heart, and he would not let them go.   28 And Pharaoh said unto him, Get thee from me, take heed to thyself, see my face no more; for in that day thou seest my face thou shalt die.   29 And Moses said, Thou hast spoken well, I will see thy face again no more.

      Here is, I. The plague of darkness brought upon Egypt, and a most dreadful plague it was, and therefore is put first of the ten in Ps. cv. 28, though it was one of the last; and in the destruction of the spiritual Egypt it is produced by the fifth vial, which is poured out upon the seat of the beast, Rev. xvi. 10. His kingdom was full of darkness. Observe particularly concerning this plague, 1. That it was a total darkness. We have reason to think, not only that the lights of heaven were clouded, but that all their fires and candles were put out by the damps or clammy vapours which were the cause of this darkness; for it is said (v. 23), They saw not one another. It is threatened to the wicked (Job xviii. 5, 6) that the spark of his fire shall not shine (even the sparks of his own kindling, as they are called, Isa. l. 11), and that the light shall be dark in his tabernacle. Hell is utter darkness. The light of a candle shall shine no more at all in thee, Rev. xviii. 23. 2. That it was darkness which might be felt (v. 21), felt in its causes by their fingers' ends (so thick were the fogs), felt in its effects, some think, by their eyes, which were pricked with pain, and made the more sore by their rubbing them. Great pain is spoken of as the effect of that darkness, Rev. xvi. 10, which alludes to this. 3. No doubt it astonished and terrified them. The cloud of locusts, which had darkened the land (v. 15), was nothing to this. The tradition of the Jews is that in this darkness they were terrified by the apparitions of evil spirits, or rather by dreadful sounds and murmurs which they made, or (which is no less frightful) by the horrors of their own consciences; and this is the plague which some think is intended (for, otherwise, it is not mentioned at all there) Ps. lxxviii. 49, He poured upon them the fierceness of his anger, by sending evil angels among them; for to those to whom the devil has been a deceiver he will, at length, be a terror. 4. It continued three days, six nights (says bishop Hall) in one; so long they were imprisoned by those chains of darkness, and the most lightsome palaces were perfect dungeons. No man rose from his place, v. 23. They were all confined to their houses; and such a terror seized them that few of them had the courage to go from the chair to the bed, or from the bed to the chair. Thus were they silent in darkness, 1 Sam. ii. 9. Now Pharaoh had time to consider, if he would have improved it. Spiritual darkness is spiritual bondage; while Satan blinds men's eyes that they see not, he binds them hands and feet that they work not for God, nor move towards heaven. They sit in darkness. 5. It was a righteous thing with God thus to punish them. Pharaoh and his people had rebelled against the light of God's word, which Moses spoke to them; justly therefore are they punished with darkness, for they loved it and chose it rather. The blindness of their minds brings upon them this darkness of the air. Never was mind so blinded as Pharaoh's, never was air so darkened as Egypt's. The Egyptians by their cruelty would have extinguished the lamp of Israel, and quenched their coal; justly therefore does God put out their lights. Compare it with the punishment of the Sodomites, Gen. xix. 11. Let us dread the consequences of sin; if three days' darkness was so dreadful, what will everlasting darkness be? 6. The children of Israel, at the same time, had light in their dwellings (v. 23), not only in the land of Goshen, where most of them dwelt, but in the habitations of those who were dispersed among the Egyptians: for that some of them were thus dispersed appears from the distinction afterwards appointed to be put on their door-posts, ch. xii. 7. This is an instance, (1.) Of the power of God above the ordinary power of nature. We must not think that we share in common mercies as a matter of course, and therefore that we owe no thanks to God for them; he could distinguish, and withhold that from us which he grants to other. He does indeed ordinarily make his sun to shine on the just and unjust; but he could make a difference, and we must own ourselves indebted to his mercy that he does not. (2.) Of the particular favour he bears to his people: they walk in the light when others wander endlessly in thick darkness; wherever there is an Israelite indeed, though in this dark world, there is light, there is a child of light, one for whom light is sown, and whom the day-spring from on high visits. When God made this difference between the Israelites and the Egyptians, who would not have preferred the poorest cottage of an Israelite to the finest palace of an Egyptian? There is still a real difference, though not so discernible a one, between the house of the wicked, which is under a curse, and the habitation of the just, which is blessed, Prov. iii. 33. We should believe in that difference, and govern ourselves accordingly. Upon Ps. cv. 28, He sent darkness and made it dark, and they rebelled not against his word, some ground a conjecture that, during these three days of darkness, the Israelites were circumcised, in order to their celebrating the passover which was now approaching, and that the command which authorized this was the word against which they rebelled not; for their circumcision, when they entered Canaan, is spoken of as a second general circumcision, Josh. v. 2. During these three days of darkness to the Egyptians, if God had so pleased, the Israelites, by the light which they had, might have made their escape, and without asking leave of Pharaoh; but God would bring them out with a high hand, and not by stealth, nor in haste, Isa. lii. 12.

      II. Here is the impression made upon Pharaoh by this plague, much like that of the foregoing plagues. 1. It awakened him so far that he renewed the treaty with Moses and Aaron, and now, at length, consented that they should take their little ones with them, only he would have their cattle left in pawn, v. 24. It is common for sinners thus to bargain with God Almighty. Some sins they will leave, but not all; they will leave their sins for a time, but they will not bid them a final farewell; they will allow him some share in their hearts, but the world and the flesh must share with him: thus they mock God, but they deceive themselves. Moses resolves not to abate in his terms: Our cattle shall go with us, v. 26. Note, The terms of reconciliation are so fixed that though men dispute them ever so long they cannot possibly alter them, nor bring them lower. We must come up to the demands of God's will, for we cannot expect he should condescend to the provisos of our lusts. God's messengers must always be bound up by that rule (Jer. xv. 19), Let them return unto thee, but return not thou unto them. Moses gives a very good reason why they must take their cattle with them; they must go to do sacrifice, and therefore they must take wherewithal. What numbers and kinds of sacrifices would be required they did not yet know, and therefore they must take all they had. Note, With ourselves, and our children, we must devote all our worldly possessions to the service of God, because we know not what use God will make of what we have, nor in what way we may be called upon to honour God with it. 2. Yet it exasperated him so far that, when he might not make his own terms, he broke off the conference abruptly, and took up a resolution to treat no more. Wrath now came upon him to the utmost, and he became outrageous beyond all bounds, v. 28. Moses is dismissed in anger, forbidden the court upon pain of death, forbidden so much as to meet Pharaoh any more, as he had been used to do, by the river's side: In that day thou seest my face, thou shalt die. Prodigious madness! Had he not found that Moses could plague him without seeing his face? Or had he forgotten how often he had sent for Moses as his physician to heal him and ease him of his plagues? and must he now be bidden to come near him no more? Impotent malice! To threaten him with death who was armed with such a power, and at whose mercy he had so often laid himself. What will not hardness of heart and contempt of God's word and commandments bring men to? Moses takes him at his word (v. 29): I will see thy face no more, that is, "after this time;" for this conference did not break off till ch. xi. 8, when Moses went out in a great anger, and told Pharaoh how soon he would change his mind, and his proud spirit would come down, which was fulfilled (ch. xii. 31), when Pharaoh became a humble supplicant to Moses to depart. So that, after this interview, Moses came no more, till he was sent for. Note, When men drive God's word from them he justly permits their delusions, and answers them according to the multitude of their idols. When the Gadarenes desired Christ to depart, he presently left them.