John Gill Commentary 2 Kings 21:11

"Because Manasseh king of Judah hath done these abominations, and hath done wickedly above all that the Amorites did, that were before him, and hath made Judah also to sin with his idols;" — 2 Kings 21:11 (ASV)

Because Manasseh king of Judah has done these abominations, &c. Before named, (2 Kings 21:3–7).

and has done wickedly above all that the Amorites did that were before him; one of the seven nations of Canaan, a principal of them, and which is put for all the rest.

and has made Judah also to sin with his idols: the worship of them, as the Targum; which he did both by his edicts, and by his example.