If Lucifer before he was Satan, had free will as I understand this, (Satan would not bow down to humans which God also created) and Adam was a man as Jesus was, before he became Christ. But if Satan had free will and was perfect then, he should have known about Jesus who was the Christ. Yet he Satan refused to kneel or worship any man including Jesus. Then anything which does not have God in it is a sin. So God tested Satan by telling him (Satan) to worship man who was created perfect (free will). Did Satan know about Jesus and his destiny before he Satan refused to kneel before man? Did God know Satan would rebel and was part of Gods plan? Paul