2 Kings 17:12
For they served idols, whereof the Lord had said unto them, Ye shall not do this thing.
Cross-reference
2 Kings 17:15 elaborates on the same sin—rejecting God's statutes and following worthless idols—deepening the context.
Exodus 20:3-5 is the very command against other gods and idols that 2 Kings 17:12 says they violated.
Exodus 34:14 reinforces the prohibition with God's jealousy, the same command broken in 2 Kings 17:12.
Leviticus 26:1 prohibits idols and images—the specific sin Israel committed in 2 Kings 17:12.
Deuteronomy 4:15-19 contains the very command God gave against serving idols, which Israel violated here.
Deuteronomy 4:23-25 repeats the warning against making idols and the resulting judgment, the same command Israel broke.
Deuteronomy 5:7-9 repeats the first two commandments, the law broken in 2 Kings 17:12 by serving idols.
Deuteronomy 4:19 warns against worshiping celestial bodies, a form of idolatry included in the prohibition in 2 Kings 17:12.