Human nature has another quirk to it that is kind of interesting. In Deuteronomy 9, God writes about these things for you and me so that we will understand. He was just about ready to bring Israel into the land, and He said:
It is very easy to delude ourselves into thinking that because God has been so gracious, He is somehow on our side, that somehow or another we have a corner on Him. But remember, this is God who says that He judges without respect of persons. He is absolutely totally fair in His judgments of everybody.