It is contrary to popular religious beliefs that God didn't approve of the sin, but He protected the first murder.

               Yet under the Old Testament Law, if a man went out and picked up sticks on the Sabbath Day, God commanded the man to be stoned to death, Numbers 15:35.

       This looks very inconsistent; because until the Law came, God was not holding man's sin against him. He was overlooking sin as it pertained to man's fellowship with Him.