He set a graven image of the grove; either, first, The image of that Baal which was worshipped in the grove. Or, secondly, A representation of the grove, as may seem by comparing 2 Kings 23:6. Or, thirdly, The graven image of Asherah, a god or goddess so called, possibly the same called elsewhere Ashtaroth. See Judges 6:25,28 2 Kings 23:6 2 Chronicles 15:16.
Related Commentaries of 2 Kings 21:7
2 Kings 21:7
7 And he set a graven image of the grove that he had made in the house, of which the LORD said to David, and to Solomon his son, In this house, and in Jerusalem, which I have chosen out of all tribes of Israel, will I put my name for ever: