17 And it came to pass, that, when the sun went down, and it was dark, behold a smoking furnace, and a burning lamp that passed between those pieces.   18 In the same day the LORD made a covenant with Abram, saying, Unto thy seed have I given this land, from the river of Egypt unto the great river, the river Euphrates:   19 The Kenites, and the Kenizzites, and the Kadmonites,   20 And the Hittites, and the Perizzites, and the Rephaims,   21 And the Amorites, and the Canaanites, and the Girgashites, and the Jebusites.

      Here is, I. The covenant ratified (v. 17); the sign which Abram desired was given, at length, when the sun had gone down, so that it was dark; for that was a dark dispensation.

      1. The smoking furnace signified the affliction of his seed in Egypt. They were there in the iron furnace (Deut. iv. 20), the furnace of affliction (Isa. xlviii. 10), labouring in the very fire. They were there in the smoke, their eyes darkened, that they could not see to the end of their troubles, and themselves at a loss to conceive what God would do with them. Clouds and darkness were round about them.

      2. The burning lamp denotes comfort in this affliction; and this God showed to Abram, at the same time that he showed him the smoking furnace. (1.) Light denotes deliverance out of the furnace; their salvation was as a lamp that burneth, Isa. lxii. 1. When God came down to deliver them, he appeared in a bush that burned, and was not consumed, Exod. iii. 2. (2.) The lamp denotes direction in the smoke. God's word was their lamp: this word to Abram was so, it was a light shining in a dark place. Perhaps this burning lamp prefigured the pillar of cloud and fire, which led them out of Egypt, in which God was. (3.) The burning lamp denotes the destruction of their enemies who kept them so long in the furnace. See Zech. xii. 6. The same cloud that enlightened the Israelites troubled and burned the Egyptians.

      3. The passing of these between the pieces was the confirming of the covenant God now made with him, that he might have strong consolation, being fully persuaded that what God promised he would certainly perform. It is probable that the furnace and lamp, which passed between the pieces, burnt and consumed them, and so completed the sacrifice, and testified God's acceptance of it, as of Gideon's (Judg. vi. 21), Manoah's (Judg. xiii. 19, 20), and Solomon's, 2 Chron. vii. 1. So it intimates, (1.) That God's covenants with man are made by sacrifice (Ps. l. 5), by Christ, the great sacrifice: no agreement without atonement. (2.) God's acceptance of our spiritual sacrifices is a token for good and an earnest of further favours. See Judg. xiii. 23. And by this we may know that he accepts our sacrifices if he kindle in our souls a holy fire of pious and devout affections in them.

      II. The covenant repeated and explained: In that same day, that day never to be forgotten, the Lord made a covenant with Abram, that is, gave a promise to Abram, saying, Unto thy seed have I given this land, v. 18. Here is,

      1. A rehearsal of the grant. He had said before, To thy seed will I give this land, ch. xii. 7; xiii. 15. But here he says, I have given it; that is, (1.) I have given the promise of it, the charter is sealed and delivered, and cannot be disannulled. Note, God's promises are God's gifts, and are so to be accounted. (2.) The possession is as sure, in due time, as if it were now actually delivered to them. What God has promised is as sure as if it were already done; hence, it is said, He that believes hath everlasting life (John iii. 36), for he shall as surely go to heaven as if he were there already.

      2. A recital of the particulars granted, such as is usual in the grants of lands. He specifies the boundaries of the land intended hereby to be granted, v. 18. And then, for the greater certainty, as is usual in such cases, he mentions in whose tenure and occupation these lands now were. Ten several nations, or tribes, are here spoken of (v. 19-21) that must be cast out, to make room for the seed of Abram. They were not possessed of all these countries when God brought them into Canaan. The bounds are fixed much narrower, Num. xxxiv. 2, 3. &c. But, (1.) In David's time, and Solomon's, their jurisdiction extended to the utmost of these limits, 2 Chron. ix. 26. (2.) It was their own fault that they were not sooner and longer in possession of all these territories. They forfeited their right by their sins, and by their own sloth and cowardice kept themselves out of possession. (3.) The land granted is here described in its utmost extent because it was to be a type of the heavenly inheritance, where there is room enough: in our father's house are many mansions. The present occupants are named, because their number, and strength, and long prescription, should be no hindrance to the accomplishment of this promise in its season, and to magnify God's love to Abram and his seed, in giving to that one nation the possessions of many nations, so precious were they in his sight, and so honourable, Isa. xliii. 4.

      7 And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee.   8 And I will give unto thee, and to thy seed after thee, the land wherein thou art a stranger, all the land of Canaan, for an everlasting possession; and I will be their God.   9 And God said unto Abraham, Thou shalt keep my covenant therefore, thou, and thy seed after thee in their generations.   10 This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised.   11 And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.   12 And he that is eight days old shall be circumcised among you, every man child in your generations, he that is born in the house, or bought with money of any stranger, which is not of thy seed.   13 He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.   14 And the uncircumcised man child whose flesh of his foreskin is not circumcised, that soul shall be cut off from his people; he hath broken my covenant.

      Here is, I. The continuance of the covenant, intimated in three things:-- 1. It is established; not to be altered nor revoked. It is fixed, it is ratified, it is made as firm as the divine power and truth can make it. 2. It is entailed; it is a covenant, not with Abraham only (then it would die with him), but with his seed after him, not only his seed after the flesh, but his spiritual seed. 3. It is everlasting in the evangelical sense and meaning of it. The covenant of grace is everlasting. It is from everlasting in the counsels of it, and to everlasting in the consequences of it; and the external administration of it is transmitted with the seal of it to the seed of believers, and the internal administration of it by the Spirit of Christ's seed in every age.

      II. The contents of the covenant: it is a covenant of promises, exceedingly great and precious promises. Here are two which indeed are all-sufficient:-- 1. That God would be their God, v. 7, 8. All the privileges of the covenant, all its joys and all its hopes, are summed up in this. A man needs desire no more than this to make him happy. What God is himself, that he will be to his people: his wisdom theirs, to guide and counsel them; his power theirs, to protect and support them; his goodness theirs, to supply and comfort them. What faithful worshippers can expect from the God they serve believers shall find in God as theirs. This is enough, yet not all. 2. That Canaan should be their everlasting possession, v. 8. God had before promised this land to Abraham and his seed, ch. xv. 18. But here, where it is promised for an everlasting possession, surely it must be looked upon as a type of heaven's happiness, that everlasting rest which remains for the people of God, Heb. iv. 9. This is that better country to which Abraham had an eye, and the grant of which was that which answered to the vast extent and compass of that promise, that God would be to them a God; so that, if God had not prepared and designed this, he would have been ashamed to be called their God, Heb. xi. 16. As the land of Canaan was secured to the seed of Abraham according to the flesh, so heaven is secured to all his spiritual seed, by a covenant, and for a possession, truly everlasting. The offer of this eternal life is made in the word, and confirmed by the sacraments, to all that are under the external administration of the covenant; and the earnest of it is given to all believers, Eph. i. 14. Canaan is here said to be the land wherein Abraham was a stranger; and the heavenly Canaan is a land to which we are strangers, for it does not yet appear what we shall be.

      III. The token of the covenant, and that is circumcision, for the sake of which the covenant is itself called the covenant of circumcision, Acts vii. 8. It is here said to be the covenant which Abraham and his seed must keep, as a copy or counterpart, v. 9, 10. It is called a sign and seal (Rom. iv. 11), for it was, 1. A confirmation to Abraham and his seed of those promises which were God's part of the covenant, assuring them that they should be fulfilled, that in due time Canaan would be theirs: and the continuance of this ordinance, after Canaan was theirs, intimates that these promises looked further to another Canaan, which they must still be in expectation of. See Heb. iv. 8. 2. An obligation upon Abraham and his seed to that duty which was their part of the covenant; not only to the duty of accepting the covenant and consenting to it, and putting away the corruption of the flesh (which were more immediately and primarily signified by circumcision), but, in general, to the observance of all God's commands, as they should at any time hereafter be intimated and made known to them; for circumcision made men debtors to do the whole law, Gal. v. 3. Those who will have God to be to them a God must consent and resolve to be to him a people. Now, (1.) Circumcision was a bloody ordinance; for all things by the law were purged with blood, Heb. ix. 22. See Exod. xxiv. 8. But, the blood of Christ being shed, all bloody ordinances are now abolished; circumcision therefore gives way to baptism. (2.) It was peculiar to the males, though the women were also included in the covenant, for the man is the head of the woman. In our kingdom, the oath of allegiance is required only from men. Some think that the blood of the males only was shed in circumcision because respect was had in it to Jesus Christ and his blood. (3.) It was the flesh of the foreskin that was to be cut off, because it is by ordinary generation that sin is propagated, and with an eye to the promised seed, who was to come from the loins of Abraham. Christ having not yet offered himself to us, God would have man to enter into covenant by the offering of some part of his own body, and no part could be better spared. It is a secret part of the body; for the true circumcision is that of the heart: this honour God put upon an uncomely part, 1 Cor. xii. 23, 24. (4.) The ordinance was to be administered to children when they were eight days old, and not sooner, that they might gather some strength, to be able to undergo the pain of it, and that at least one sabbath might pass over them. (5.) The children of the strangers, of whom the master of the family was the true domestic owner, were to be circumcised (v. 12, 13), which looked favourably upon the Gentiles, who should in due time be brought into the family of Abraham, by faith. See Gal. iii. 14. (6.) The religious observance of this institution was required under a very severe penalty, v. 14. The contempt of circumcision was a contempt of the covenant; if the parents did not circumcise their children, it was at their peril, as in the case of Moses, Exod. iv. 24, 25. With respect to those that were not circumcised in their infancy, if, when they grew up, they did not themselves come under this ordinance, God would surely reckon with them. If they cut not off the flesh of their foreskin, God would cut them off from their people. It is a dangerous thing to make light of divine institutions, and to live in the neglect of them.