So just so I've got this straight, Jesus tells us He is God in His own words:

John 14:10 Believest thou not that I am in the Father, and the Father in me? the words that I speak unto you I speak not of myself: but the Father that dwelleth in me, he doeth the works.
John 14:11 Believe me that I am in the Father, and the Father in me: or else believe me for the very works' sake.

1 John 5:7 For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.

Then Jesus according to this thread predicts the coming of a prophet who will deny His divinity... lol. Unless Jesus predicted that a false prophet would arise who would claim the spirit of denying Jesus Christ - therefore by definition Muhammad is anti-christ and Islam is also.

Ok now here is something interesting. Abraham gave birth to Isaac and Isaac to Jacob who had twelve sons making the twelve tribes of Israel. However Arbaham had Ishmael first to his Egyptian hand maid, and it was said of Ishmael that:

"But as for Ishmael, I have heard thee: behold I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation." Genesis 17:20

Muhammad claims lineage I believe to Ishmael, and tells the Genesis story a *little* differently to the bible (which pre-dates him by several hundred+ years) by saying Ishmael was the son of Abraham and Sarah, not the hand maid... go figure.