2 Kings 16:4

4 and he sacrificeth and maketh perfume in high places, and on the heights, and under every green tree.

2 Kings 16:4 Meaning and Commentary

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 ) ( 3:6 ) .

2 Kings 16:4 In-Context

2 A son of twenty years [is] Ahaz in his reigning, and sixteen years he hath reigned in Jerusalem, and he hath not done that which [is] right in the eyes of Jehovah his God, like David his father,
3 and he walketh in the way of the kings of Israel, and also his son he hath caused to pass over into fire, according to the abominations of the nations that Jehovah dispossessed from the presence of the sons of Israel,
4 and he sacrificeth and maketh perfume in high places, and on the heights, and under every green tree.
5 Then doth Rezin king of Aram go up, and Pekah son of Remaliah king of Israel, to Jerusalem, to battle, and they lay siege to Ahaz, and they have not been able to fight.
6 At that time hath Rezin king of Aram brought back Elath to Aram, and casteth out the Jews from Elath, and the Aramaeans have come in to Elath, and dwell there unto this day.
Young's Literal Translation is in the public domain.