In my February e-teaching titled Three Questionable Beliefs Christians Hold Concerning Modern Israel, I attempted to show that, because God is a moral being, He has not always historically sided with the nation of Israel. A moral being cannot side with people who become immoral. And for the same reason, God never gave the descendants of Israel perpetual, unconditional, sovereign right to the land called Palestine. If He did so apart from moral considerations, He would not be a moral being. This is Bible 101.
