‏ Jonah 3:5-9

Verse 5

The people of Nineveh believed God - They had no doubt that the threatening would be fulfilled, unless their speedy conversion prevented it; but, though not expressed, they knew that the threatening was conditional. "The promises and threatenings of God, which are merely personal, either to any particular man or number of men, are always conditional, because the wisdom of God hath thought fit to make these depend on the behavior of men." - Dr. S. Clarke's Sermons, vol. i.

Proclaimed a fast - And never was there one so general, so deep, and so effectual. Men and women, old and young, high and low, and even the cattle themselves, all kept such a fast as the total abstinence from food implies.
Verse 6

Word came unto the king - This, some think, was Pul; others, Sardanapalus his son, king of Assyria, who flourished in the reign of Jeroboam the Second: but it seems more probable that the monarch here alluded to was a king of Assyria contemporary with Joash, king of Judah. It was by the decree of the king that the fast was instituted, and became general.
Verse 8

Let man and beast be covered - This was done that every object which they beheld might deepen the impression already made, and cause them to mourn after a godly sort. Virgil tells us that the mourning for the death of Julius Caesar was so general, that the cattle neither ate nor drank: -

Non ulli pastos illis egere diebus

Frigida, Daphni, boves ad flumina: nulla neque amnem

Libavit quadrupes, nec graminis attigit herbam.

Ecl. 5:24. "The swains forgot their sheep, nor near the brink

Of running waters brought their herds to drink.

The thirsty cattle of themselves abstain'd,

From water, and their grassy fare disdain'd."

Dryden.

And that they sometimes changed: or reversed the harness and ornaments of cattle, as indicative of mourning, we have a proof in Virgil's description of the funeral procession in honor of Pallas, slain by Turnus, Aen. 11 ver. 89.

Post bellator equus, positis insignibus, Aethon

It lacrymans, guttisque humectat grandibus ora. "Stripp'd of his trappings, and his head declined,

Aethon, his generous warrior-horse, behind,

Moves with a solemn, slow, majestic pace;

And the big tears come rolling down his face."
Verse 9

Who can tell if God will turn and repent - There is at least a peradventure for our salvation. God may turn towards us, change his purpose, and save us alive. While there is life there is hope; God has no pleasure in the death of sinners; he is gracious and compassionate. Himself has prescribed repentance; if we repent, and turn to him from our iniquities, who knows then whether God will not turn, etc.
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