Psalm 81:8-14 (NIV)
8 "Hear, O my people, and I will warn you-- if you would but listen to me, O Israel!
9 You shall have no foreign god among you; you shall not bow down to an alien god.
10 I am the LORD your God, who brought you up out of Egypt. Open wide your mouth and I will fill it.
11 "But my people would not listen to me; Israel would not submit to me.
12 So I gave them over to their stubborn hearts to follow their own devices.
13 "If my people would but listen to me, if Israel would follow my ways,
14 how quickly would I subdue their enemies and turn my hand against their foes!