Then Tiglath-pileser king of Assyria came to Ahaz but afflicted him rather than strengthening him.
Here is, I. The great distress which the kingdom of Ahaz was reduced to for his sin. In general, 1. The Lord brought Judah low, Ch2 28:19. They had lately been very high in wealth and power; but God found means to bring them down, and make them as despicable as they had been formidable.
Commenting on 2 Chronicles 28:16-27
And in the time of his distress did he trespass yet more against the Lord,.... By increasing his idolatries, as appears by what he did, in imitation of what he saw at Damascus, where he had an interview with the king of Assyria, Kg2 16:10 this is that King Ahaz; that monster of iniquity, than whom there was none worse, nor any so bad, of all the kings of Judah.
Tilgath-pilneser . . . distressed him, but strengthened him not--that is, notwithstanding the temporary relief which Tilgath-pilneser afforded him by the conquest of Damascus and the slaughter of Rezin (Kg2 16:9), little advantage resulted from it, for Tilgath-pilneser spent the winter in voluptuous revelry at Damascus; and the connection formed with the Assyrian king was eventually a source of new and greater calamities and humiliation...