2 Kings 17:12

and serve the idols, of which Jehovah said to them, 'Ye do not do this thing;'

Exodus 20:3-5

'Thou hast no other Gods before Me.

Exodus 34:14

for ye do not bow yourselves to another god -- for Jehovah, whose name is Zealous, is a zealous God.

Leviticus 26:1

Ye do not make to yourselves idols; and graven image or standing image ye do not set up to yourselves; and a stone of imagery ye do not put in your land, to bow yourselves to it; for I am Jehovah your God.

Deuteronomy 4:15-19

and ye have been very watchful of your souls, for ye have not seen any similitude in the day of Jehovah's speaking unto you in Horeb out of the midst of the fire,

Deuteronomy 4:23-25

Take heed to yourselves, lest ye forget the covenant of Jehovah your God, which He hath made with you, and have made to yourselves a graven image, a similitude of anything concerning which Jehovah thy God hath charged thee:

Deuteronomy 5:7-9

'Thou hast no other gods in My presence.

Deuteronomy 12:4

'Ye do not do so to Jehovah 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 hast no other Gods before Me.
Exodus 34:14
for ye do not bow yourselves to another god -- for Jehovah, whose name is Zealous, is a zealous God.
Leviticus 26:1
Ye do not make to yourselves idols; and graven image or standing image ye do not set up to yourselves; and a stone of imagery ye do not put in your land, to bow yourselves to it; for I am Jehovah your God.
Deuteronomy 4:19
'And lest thou lift up thine eyes towards the heavens, and hast seen the sun, and the moon, and the stars, all the host of the heavens, and thou hast been forced, and hast bowed thyself to them, and served them, which Jehovah thy God hath apportioned to all the peoples under the whole heavens.
Deuteronomy 5:7
'Thou hast no other gods in My presence.

Ye shall not

Deuteronomy 4:15
and ye have been very watchful of your souls, for ye have not seen any similitude in the day of Jehovah's speaking unto you in Horeb out of the midst of the fire,
Deuteronomy 12:4
'Ye do not do so to Jehovah your God;