In the statutes of the heathen, i.e. according to the laws and customs of the heathen, in the worship of their Baals, and other of their sins. Which they had made, i.e. which the kings of Israel had ordained concerning the worship of the calves, and against their going up to Jerusalem to worship.
Related Commentaries of 2 Kings 17:8
2 Kings 17:8
8 And walked in the statutes of the heathen, whom the LORD cast out from before the children of Israel, and of the kings of Israel, which they had made.