Let me see...Richard Dawkins quotes such passages somewhere...Ahh, here's something Dawkins describes in The God Delusion:
"The military leader Jephthah made a bargain with God that, if God would guarantee Jephthah's victory over the Ammonites, Jephthah would, without fail, sacrifice as a burnt offering 'whatsoever cometh forth of the doors of my house to meet me, when I return'. [...]his daughter, his only child, came out of the house to greet him [...] she was the first living thing to do so."
and...
"Moses seized the golden calf, burned it, ground it to powder, mixed it with water and made the people swallow it. Then he told everybody in the priestly tribe of Levi to pick up a sword and kill as possible. This amounted to about three thousand which, one might have hoped, would have been enough to assuage God's jealous sulk. But no, God wasn't finished yet. [...]his parting shot was to send a plague upon what was left of the people "because they made the calf, which Aaron made".
and...
"The book of Numbers tells how God incited Moses to attack the Midianites. His army made short work of slaying all the men[...]and he gave orders that all the boy children should be killed, and all the women who were not virgins."
and...
"In Numbers, chapter 25, many of the Israelites were lured by Moabite women to sacrifice to Baal. God reacted with characteristic fury. He ordered Moses to "Take all the heads of the people and hang them up before the Lord against the sun, that the fierce anger of the Lord may be turned away from Israel."
and...
"The ethnic cleansing begun in the time of Moses is brought to bloody fruition in the book of Joshua, a text remarkable for the bloodthirsty massacres it records and the xenophobic relish with which it does so. [...]Good old Joshua didn't rest until 'they had utterly destroyed all that was in the city, both man and woman, young and old'[...]In contrast to this relatively humane treatment, see what was in store for those tribes unfortunate enough to be already in residence in the promised Lebensraum: 'But of the cities of these people, which the Lord thy God doth give thee for inheritance, thou shalt save alive nothing that breatheth: But thou shalt utterly destroy them; namely, the Hittites, and the Amorites, the Canaanites, and the Perizzites, the Hivites and the Jebusites; as the Lord thy God hath commanded thee.'"
and...
"The following offences merit the death penalty according to Leviticus 20: cursing your parents; committing adultery; making love to your stepmother or your daughter-in-law; homosexuality; marrying a woman and her daughter; bestiality (and, to add injury to insult, the unfortunate beast is to be killed too). You also get executed, of course, for working on the sabbath [...] The children of Israel found a man in the wilderness gathering sticks on the forbidden day. They arrested him and then asked God what to do [...] 'And the Lord said unto Moses, The man shall surely be put to death'
And that's the fraction of all the times God's ordered people to be killed in the Bible, if we don't count Judas and Jesus' murderers are supposedly taking part in some cosmic plan. Then it's a slightly bigger fraction. But still, that's a whole lotta times God ordered people killed for a supposedly "peacefull" god.