As did the Amorites. — The reference is probably not only to the idolatry and worship of false gods, but to the nameless abominations always connected with such worship.
Related Commentaries of 1 Kings 21:26
1 Kings 21:26
26 And he did very abominably in following idols, according to all things as did the Amorites, whom the LORD cast out before the children of Israel.