Charles Ellicott Commentary 2 Kings 16:7

"So Ahaz sent messengers to Tiglath-pileser king of Assyria, saying, I am thy servant and thy son: come up, and save me out of the hand of the king of Syria, and out of the hand of the king of Israel, who rise up against me." — 2 Kings 16:7 (ASV)

So Ahaz sent messengers. —See Notes on 2 Chronicles 28:16; 2 Chronicles 28:20.

Which rise up against me. —Or, which are assailing me. “The vain confidence of the rulers of Judah, described by Isaiah in his first prophetic book, was rudely shaken by the progress of the war with Pekah and Rezin. Unreasoning confidence had given way to equally unreasoning panic. They saw only one way of escape—namely, to throw themselves upon the protection of Assyria.” (Robertson Smith.)