Exodus 20:3-5

20:3 Thou shalt have no other gods before me. 20:4 Thou shalt not make unto thee any graven image, or any likeness [of any thing] that [is] in heaven above, or that [is] in the earth beneath, or that [is] in the water under the earth: 20:5 Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God [am] a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth [generation] of them that hate me;

Exodus 20:23

20:23 Ye shall not make with me gods of silver, neither shall ye make unto you gods of gold.