Matthew Henry on 2 Kings 16:1-4
We have here a general character of the reign of Ahaz. Few and evil were his days - few, for he died at thirty-six - evil, for we are here told, 1. That he did not that which was right like David (Kg2 16:2), that is, he had none of that concern and affection for the instituted service and worship of God for which David was celebrated. He had no love for the temple, made no conscience of his duty to God, nor had any regard to his law. Herein he was unlike David; it was his honour that he was of the house and lineage of David, and it was owing to God's ancient covenant with David that he was now upon the throne, which aggravated his wickedness; for he was a reproach to that honourable name and…
Read the whole note in the consoleJamieson-Fausset-Brown on 2 Kings 16:3
walked in the way of the kings of Israel--This is descriptive of the early part of his reign, when, like the kings of Israel, he patronized the symbolic worship of God by images but he gradually went farther into gross idolatry (Ch2 28:2).
made his son to pass through the fire-- (Kg2 23:10). The hands of the idol Moloch being red hot, the children were passed through between them, which was considered a form of lustration. There is reason to believe that, in certain circumstances, the children were burnt to death (Psa 106:37). This was strongly prohibited in the law (Lev 18:21; Lev 20:2-5; Deu 18:10), although there is no evidence that it was practised in Israel till the time of Ahaz.
Adam Clarke on 2 Kings 16:3
Made his son to pass through the fire - On this passage I beg leave to refer the reader to my notes on Lev 18:21; Lev 20:2, Lev 20:14, where the subject is considered at large.
John Gill on 2 Kings 16:4
And he sacrificed and burnt incense in the high places, and on the hills,.... Which none of the kings of Judah before him ever did; for though they connived at this practice in the people, they never encouraged it by their own example; and very probably he offered sacrifices there to idols, see 2 Chronicles 28:25 whereas the people sacrificed to the true God, though at a wrong place:
and under every green tree; and which is never said of the people, and seems to confirm it, that Ahaz sacrificed to other gods, since the Heathens used to place idols under green trees, and worship them, whom the Jews imitated, Jeremiah 2:2.