Here's some great verses:
"And The Lord said to Moses ... He who blasphemes the Name of The Lord shall be put to death; all the congregation shall stone him; the sojourner as well as the native, when he blasphemes the Name, shall be put to death." (Leviticus 24:13,16 RSV)
I love this one
"If your brother, the son of your mother, or your son, or your daughter, or the wife of your bosom, or your friend who is as your own soul, entices you secretly, saying, 'Let us go and serve other gods ... You shall stone him to death with stones, because he sought to draw you away from The Lord your God, who brought you out of the land of Egypt, out of the house of bondage." (Deuteronomy 13:6,10 RSV)
Here's another couple goodies
"While the people of Israel were in the wilderness, they found a man gathering sticks on the Sabbath day ... And The Lord said to Moses, "The man shall be put to death; all the congregation shall stone him with stones outside the camp." (Numbers 15:32,35 RSV)
Deuteronomy 17:1-7 "You shall not sacrifice to the LORD your God an ox or a sheep in which is a blemish, any defect whatever; for that is an abomination to the LORD your God. "If there is found among you, within any of your towns which the LORD your God gives you, a man or woman who does what is evil in the sight of the LORD your God, in transgressing his covenant, and has gone and served other gods and worshiped them, or the sun or the moon or any of the host of heaven, which I have forbidden, and it is told you and you hear of it; then you shall inquire diligently, and if it is true and certain that such an abominable thing has been done in Israel, then you shall bring forth to your gates that man or woman who has done this evil thing, and you shall stone that man or woman to death with stones. On the evidence of two witnesses or of three witnesses he that is to die shall be put to death; a person shall not be put to death on the evidence of one witness. The hand of the witnesses shall be first against him to put him to death, and afterward the hand of all the people. So you shall purge the evil from the midst of you.
So, is this why we're killing all the arabs...for practicing another religion?