Is the mass murdering, petty god of the OT the same one as in the NT who is forgiving and loving?

Yes, he is the same ******** God who had just decided to change the rules. You see, for some reason it was okay to kill women, children, and babies in the OT times if the men in their lives were evil. God says "thou shall not kill" in the OT but also orders his followers to kill innocent people. According to christians, this is not a contradiction.