Exodus 20:3 – 5
New International Version (NIV)
3 “You shall have no other gods before me.
4 “You shall not make for yourself an image in the form of anything in heaven above or on the earth beneath or in the waters below. 5 You shall not bow down to them or worship them; for I, the Lord your God, am a jealous God, punishing the children for the sin of the parents to the third and fourth generation of those who hate me,
From BibleGateway.com: http://www.biblegateway.com/passage/?search=Exodus 20:3-5&version=NIV