2 Kings 17:12

And they served idols, of which LORD had said to them, Ye shall not do this thing.

Exodus 20:3-5

Thou shall have no other gods before me.

Exodus 34:14

for thou shall worship no other god. For LORD, whose name is Jealous, is a jealous God.

Leviticus 26:1

Ye shall make for you no idols. Neither shall ye rear up for you a graven image, or a pillar. Neither shall ye place any figured stone in your land, to bow down to it. For I am LORD your God.

Deuteronomy 4:15-19

Take ye therefore good heed to yourselves, for ye saw no manner of form on the day that LORD spoke to you in Horeb out of the midst of the fire.

Deuteronomy 4:23-25

Take heed to yourselves, lest ye forget the covenant of LORD your God, which he made with you, and make you a graven image in the form of anything which LORD thy God has forbidden thee.

Deuteronomy 5:7-9

Thou shall have no other gods before me.

Deuteronomy 12:4

Ye shall not do so to LORD your God.

Treasury of Scripture Knowledge

Summary

For they served idols, whereof the LORD had said unto them, Ye shall not do this thing.

Bible References

Whereof

Exodus 20:3
Thou shall have no other gods before me.
Exodus 34:14
for thou shall worship no other god. For LORD, whose name is Jealous, is a jealous God.
Leviticus 26:1
Ye shall make for you no idols. Neither shall ye rear up for you a graven image, or a pillar. Neither shall ye place any figured stone in your land, to bow down to it. For I am LORD your God.
Deuteronomy 4:19
And lest thou lift up thine eyes to heaven, and when thou see the sun and the moon and the stars, even all the host of heaven, thou be drawn away and worship them, and serve them, which LORD thy God has allotted to all the peoples
Deuteronomy 5:7
Thou shall have no other gods before me.

Ye shall not

Deuteronomy 4:15
Take ye therefore good heed to yourselves, for ye saw no manner of form on the day that LORD spoke to you in Horeb out of the midst of the fire.
Deuteronomy 12:4
Ye shall not do so to LORD your God.