In the seventeenth year of Pekah son of Remaliah, King Ahaz son of Jotham of Judah began to reign.
Ahaz was twenty years old when he began to reign; he reigned sixteen years in Jerusalem. He did not do what was right in the sight of the Lord his God, as his ancestor David had done,
but he walked in the way of the kings of Israel. He even made his son pass through fire, according to the abominable practices of the nations whom the Lord drove out before the people of Israel.
He sacrificed and made offerings on the high places, on the hills, and under every green tree.
Then King Rezin of Aram and King Pekah son of Remaliah of Israel came up to wage war on Jerusalem; they besieged Ahaz but could not conquer him.
At that time the king of Edom recovered Elath for Edom, and drove the Judeans from Elath; and the Edomites came to Elath, where they live to this day.
References for 2 Kings 16:6
Ahaz sent messengers to King Tiglath-pileser of Assyria, saying, "I am your servant and your son. Come up, and rescue me from the hand of the king of Aram and from the hand of the king of Israel, who are attacking me."