The Jews sent priests and Levites to john the Baptist to inquire who he really was. (John 1:20-21): "And he [John the Baptist] confessed and denied not; but confessed, I am not the Christ. And they asked him, What then? Art thou Elias? And he saith, I am not. Art thou that prophet? And he answered, No."
The crucial question here is: Art thou that prophet? Who was then the long-awaited Prophet after the advent of Jesus and John the Baptist? Was he not the one like unto Moses (Deuteronomy 18:18) who is Muhammad [PBUH]?

Matthew 3:11: "I [John the Baptist] indeed baptize you with water unto repentance: but he that cometh after me is mightier than I, whose shoes I am not worthy to bear: he shall baptize you with the Holy Ghost, and with fire."
If Jesus was alluded to here, john the Baptist would not go back to live in the jungle again, but to cling to him and be one of his disciples, which he did not do.  So another powerful Prophet was here alluded to, and not Jesus. The one coming after John the Baptist could not be Jesus as both were contemporaries. Here again, was it not Prophet Muhammad [PBUH] alluded to by John the Baptist?

Jesus was quoted as saying (Matthew 11:11): "Verily I say unto you, Among them that are born of women there hath not risen a greater than John the Baptist: notwithstanding he that is least in the kingdom of heaven is greater than he."
Can you believe that John the Baptist is greater than Adam, Noah, Abraham, Moses, David and many other Prophets?  How many pagans had John the Baptist converted and how many followers did he have?  But this is not the main point here. The question is, who was the least in the kingdom of heaven, greater than john the Baptist?  For sure not Jesus, as at that time the kingdom of heaven was not yet formed, and he never claimed to be the least, i.e. the youngest one.  The kingdom of heaven consists of God as the Supreme Being and all Prophets.  The least or youngest one is here Prophet Muhammad [PBUH].
 

In his sermon on the mount Jesus was quoted as saying (Matthew 5:9): "Blessed are the peacemakers: for they shall be called the children of God."
Islam means also Peace: peace between the Creator and the worshiper. Jesus could not mean his mission as peacemaker as he did not come for peace. (Matthew 10:34-36): "Think not that I am come to send peace on earth: I came not to send peace, but a sword.  For I am come to set a man at variance against his father, and the daughter against her mother, and the daughter in law against her mother in law.  And a man's foes shall be they of his own household." See also Luke 12:49-53.