Study of all 4 Gospels at the Same Time - Introduction of Christ - Matthew 3: 11 & 12; Mark 1: 7 & 8; Luke 3: 15 - 18; John 1: 19 - 28 - Post 15

Matthew 3: 11 & 12
"I baptize you with water, for repentance, but the one coming after me is more powerful than I am - I am not worthy to carry his sandals.  He will baptize you with the Holy Spirit and fire.  His winnowing fork is in his hand, and he will clean the threshing floor and will gather his wheat into the storehouse, but the chaff he will burn up with inextinguishable fire."
Mark 1: 7 & 8
He proclaimed, "One more powerful than I am is coming after me; I am not worthy to bend down and untie the strap of his sandals.  I baptize you with water, but he will baptize you with the Holy Spirit."
Luke 3: 15 - 18
While the people were filled with anticipation and they wondered whether perhaps John could be the Christ, John answered them all, "I baptize you with water, but one more powerful than I am is coming - I am not worthy to untie the strap of his sandals.  He will baptize you with the Holy Spirit and fire.  His winnowing fork is in his hand to clean out the threshing floor and to gather the wheat into his storehouse, but the chaff he will burn up with inextinguishable fire."  And in this way, with many other exhortations, John proclaimed good news to the people.
John 1: 19 - 28
Now this was John's testimony when the Jewish leaders sent priests and Levites from Jerusalem to ask him, "Who are you?"  He confessed - "I am not the Christ!"  So they asked him, "Then who are you?  Are you Elijah?"  He said, "I am not!"  "Are you the Prophet?" He answered , "No!"  Then they said to him, "Who do you say about yourself?"  John said, "I am the voice of one shouting in the wilderness, 'Make straight the way for the Lord, as Isaiah the prophet said"  (Now they had been sent from the Pharisees.)  So they asked John, "Why then are baptizing if you are not the Christ, nor Elijah, nor the Prophet?"

These accounts are similar, yet different.  I felt it would help to see all the accounts, so you would be able to follow my explanation and differences between them.  The Matthew and Luke account say "He will baptize with the Holy Spirit and with fire."  Mark does not use this language, because his Gospel was aimed at the Romans.  John's (the Apostle) account talks more about John the Baptist's qualifications then how Jesus will baptize.  Matthew's Gospel was written to the Jews to show Jesus Christ as the Messiah.  Mark's account was written to the Romans to give an account of Jesus Christ.  Luke's account is the most historical account and was written to the Greeks.  John's account was to show Jesus Christ as the Son of God.