Then Rezin king of Syria and Pekah son of Remaliah king of Israel came up to Jerusalem to war: and they besieged Ahaz, but could not overcome {c} him.

(c) For the Lord preserved the city and his people for the sake of his promise made to David.

Wesley's Notes

16:5 Could not overcome - Because God of his own mere grace, undertook his protection, and disappointed the hopes of his enemies.

Jamieson-Fausset-Brown Bible Commentary

5. Then Rezin king of Syria and Pekah son of Remaliah king of Israel came up to Jerusalem-Notwithstanding their great efforts and military preparations, they failed to take it and, being disappointed, raised the siege and returned home (compare Isa 7:1).

Matthew Henry's Concise Commentary

16:1-9 Few and evil were the days of Ahaz. Those whose hearts condemn them, will go any where in a day of distress, rather than to God. The sin was its own punishment. It is common for those who bring themselves into straits by one sin, to try to help themselves out by another.

Matthew Henry's Whole Bible Commentary

Verses 5-9

Here is, 1. The attempt of his confederate neighbours, the kings of Syria and Israel, upon him. They thought to make themselves masters of Jerusalem, and to set a king of their own in it, Isa. 7:6. In this they fell short, but the king of Syria recovered Elath, a considerable port upon the Red Sea, which Amaziah had taken from the Syrians, ch. 14:22. What can those keep that have lost their religion? Let them expect, thenceforward, to be always on the losing hand. 2. His project to get clear of them. Having forsaken God, he had neither courage nor strength to make head against his enemies, nor could he, with any boldness, ask help of God; but he made his court to the king of Assyria, and got him to come in for his relief. Those whose hearts condemn them will go any where in a day of distress rather than to God. Was it because there was not a God in Israel that he sent to the Assyrian for help? Was the rock of ages removed out of its place, that he stayed himself on this broken reed? The sin itself was its own punishment; for, though it is true that he gained his point (the king of Assyria hearkened to him, and, to serve his own turn, made a descent upon Damascus, whereby he gave a powerful diversion to the king of Syria, v. 9, and obliged him to let fall his design against Ahaz, carrying the Syrians captive to Kir, as Amos had expressly foretold, ch. 1:5), yet, considering all, he made but a bad bargain; for, to compass this, (1.) He enslaved himself (v. 7): I am thy servant and thy son, that is, "I will be as dutiful and obedient to thee as to a master or father, if thou wilt but do me this good turn." Had he thus humbled himself to God, and implored his favour, he might have been delivered upon easier terms; he might have saved his money, and needed only to have parted with his sins. But, if the prodigal forsake his father's house, he soon becomes a slave to the worst of masters, Lu. 15:15. (2.) He impoverished himself; for he took the silver and gold that were laid up in the treasury both of the temple and of the kingdom, and sent it to the king of Assyria, v. 8. Both church and state must be squeezed and exhausted, to gratify this his new patron and guardian. I know not what authority he had thus to dispose of the public stock; but it is common for those that have brought themselves into straits by one sin to help themselves out by another; and those that have alienated themselves from God will make no difficulty of alienating any of his rights.