If there is indeed only one way to salvation and that way is through faith in one man, then a false prophet would absolutely steer people away from him.
Now that I have given you all the historical evidences for the corruption of the Biblical text and proof of the validity/authenticity of Prophet Muhammad's (pbuh) message (the Qur'an and the Hadith) - you are talking out of your 'born again' emotion or perhaps just repeating materials that you have been brainwashed with without an iota of scriptural evidence. So now let me break it all down for you from your own Bible.
First, let's examine what are the signs of a false Prophet according to the Bible and see if Prophet Muhammad(pbuh) fits into that description or not.
1) Matthew 24: 4 Jesus answered: “Watch out that no one deceives you. 5 For many will come in my name, claiming, ‘I am the Messiah,’ and will deceive many.
Prophet Muhammad(pbuh) certainly does not fit the description of the false prophet given by Jesus(pbuh) here. Why not ? First of all,
neither Muslims nor Prophet Muhammad(pbuh) ever claimed he was the Christ/Messiah, that title was never given to him in the Quran, the term Christ/Messiah is only given to Jesus(pbuh) in the Quran. Secondly,
Prophet Muhammad(pbuh) never came in Jesus’ name; Muhammad(pbuh) came in Allah’s(God) name and that's why every chapter in the Qur'an starts with 'IN THE NAME OF Allah(God), Most Gracious, Most Merciful'.
2) Mark 13:21 At that time if anyone says to you, ‘Look, here is the Messiah!’ or, ‘Look, there he is!’ do not believe it. 22 For false messiahs and false prophets will appear and perform signs and wonders to deceive, if possible, even the elect. 23 So be on your guard; I have told you everything ahead of time.
Prophet Muhammad(pbuh) certainly does not fit the description of the false prophet given by Jesus(pbuh) here. Why not ?
Once again neither Muslims nor Prophet Muhammad(pbuh) ever claimed he was the Christ/Messiah. The next description Jesus(pbuh) gives is that the false prophet will perform several great signs and wonders to deceive
people.
Even though Prophet Muhammad(pbuh) did perform some miracles in his life time, that wasn't his forte unlike some former Prophets such as Moses(pbuh) etc. In fact, the pagans accused Prophet Muhammad(pbuh) of not performing great miracles and signs since he did not go around everyday performing miracles, and doing great wonders. This is what the Dajjal (anti-Christ) will do. So either way, the Prophet Muhammad does not match that description.
3)1 John 4: 1 Dear friends, do not believe every spirit, but test the spirits to see whether they are from God, because many false prophets have gone out into the world. 2 This is how you can recognize the Spirit of God: Every spirit that acknowledges that Jesus Christ has come in the flesh is from God, 3 but every spirit that does not acknowledge Jesus is not from God. This is the spirit of the anti christ, which you have heard is coming and even now is already in the world.
Prophet Muhammad(pbuh) certainly does not fit the description of the false prophet given by Jesus(pbuh) here rather he perfectly fits the description of the true prophet. Why ? Note that the person who confesses that Jesus(pbuh) is the Christ, is from God. Those who do not confess that Jesus(pbuh) is the Christ are the anti-Christ.
Therefore, Prophet Muhammad(pbuh) is from God since Prophet Muhammad(pbuh) did confess that Jesus(pbuh) is the Christ/Messiah; and he never said that Jesus(pbuh) is NOT the Christ as can be clearly seen from the Holy Qur'an:
"Behold! the angels said: "O Mary! Allah giveth thee glad tidings of a Word from Him: his name will be Christ Jesus, the son of Mary, held in honour in this world and the Hereafter and of (the company of) those nearest to Allah;" (Al Qur'an 3:45)
So you can clearly see that Prophet Muhammad(pbuh) does not in anyway fit the description of the false Prophet stated in the Bible, rather he fits the description of the True prophet of God as stated there in.
Moreover, Prophet Muhammad(pbuh) fits into the description of the prophet to come from the prophecies stated in the Bible perfectly. You can read more details in the following sites but I'll just breifly mention them here.
1) In Deuteronomy 18, Moses(pbuh) stated that God told him: “I will raise up for them a prophet like you from among their brothers; I will put my words in his mouth, and he will tell them everything I command him. If anyone does not listen to my words that the prophet speaks in my name, I myself will call him to account.” (Deuteronomy 18:18-19).
Points to note here are [1]:
a) That he will be like Moses.
"There were hardly any two prophets who were so much alike as Moses and Muhammad . Both were given a comprehensive law and code of life. Both encountered their enemies and were victorious in miraculous ways. Both were accepted as prophets and statesmen. Both migrated following conspiracies to assassinate them. Analogies between Moses and Jesus overlook not only the above similarities but other crucial ones as well. These include the natural birth, the family life, and death of Moses and Muhammad but not of Jesus. Moreover Jesus was regarded by his followers as the Son of God and not exclusively as a prophet of God, as Moses and Muhammad were and as Muslims believe Jesus was. So, this prophecy refers to the Prophet Muhammad and not to Jesus, because Muhammad is more like Moses than Jesus."
b) That he will come from the brothers of the Israelites, i.e. the Ishmaelites.
c) That God will put His words in to the mouth of this prophet (i.e the Qur'an) and that he will declare what God commands him as the Qur'an itself testifies to this fact:
"Nor does he speak from [his own] inclination.It is not but a revelation revealed"(Al-Qur'an 53:3-4)
[1]
http://www.islam-guide.com/frm-ch1-3.htm
2) In John 16, Jesus(pbuh) states that “I have much more to say to you, more than you can now bear. 13 But when he, the Spirit of truth, comes, he will guide you into all the truth. He will not speak on his own; he will speak only what he hears, and he will tell you what is yet to come. 14 He will glorify me because it is from me that he will receive what he will make known to you."(12-14)
Points to note here are [2]:
a)The Spirit of truth here can not be the Holy Ghost because the Holy Ghost (according to the Bible) was "with" them already (and even quite active) long before the coming of Jesus (pbuh) himself and then throughout his ministry.
b)Jesus(pbuh) is stating that the Spirit of Truth will tell much more new things about God and guidance and he will not speak on his own rather what he hears from God. Did the holy ghost in the last 2000 years after Jesus(pbuh) left teach anything new or give any new information ? No, only Prophet Muhammad(pbuh) did.
c) The Spirit of Truth will glorify Jesus(pbuh). Once again as stated in the Holy Qur'an, Jesus(pbuh) was glorified : "Behold! the angels said: "O Mary! Allah giveth thee glad tidings of a Word from Him: his name will be Christ Jesus, the son of Mary, held in honour in this world and the Hereafter and of (the company of) those nearest to Allah;" (Al Qur'an 3:45)
[2]
What Did Jesus Really Say ? - A "Paraclete" like Jesus
Finally, Read Matthew 7
21 “
Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of heaven, but only the one who does the will of my Father who is in heaven. 22 Many will say to me on that day, ‘Lord, Lord, did we not prophesy in your name and in your name drive out demons and in your name perform many miracles?’ 23 Then I will tell them plainly, ‘I never knew you. Away from me, you evildoers!’
It is quite telling as to how Jesus(pbuh) in the Bible states 'ONLY the one who does the will of God will enter the kingdom of heaven' and that 'those who does things in Jesus's(pbuh) name will not enter the kingdom of heaven' and yet you claim that 'salvation is through faith in one man' in Jesus's(pbuh) name. You take Paul's word over Jesus's(pbuh).
Who's the real false prophet ? The one who teaches God is human being or the one who teaches God is Not a human being.
What does the Bible say about that ?
Numbers 23:19 "
God is not human, that he should lie,not a human being, that he should change his mind.Does he speak and then not act? Does he promise and not fulfill? "
All these together cannot make things any clearer than that. Think about it !!!
Peace to you.