patrick jane forums

My short answer is NO Matthew, in fact none of the four Gospels address the BOC directly.  You can make a case for indirect hints for it to come later on, but even that is a stretch.
In your reply on the Body of Christ (BOC) you quote 1 Corinthians 12:12-27, Colossians 2, Revelation 19:7,9,  Revelation 21:2,  Revelation 21:9,  Jeremiah 2:32, Jeremiah 3:14, 20, Isaiah 54:5-6, Hosea 2:15-23, Jeremiah 31,  and many many more. 

My first statement from purely academic viewpoint and not from a purely faithful believer is that Matthew is a Canonical Gospel and almost all the quoted scriptures are canonical books not deemed Gospels.  More or less, they are in support of and the stories leading up to and after the Canonical Gospels.  The Gospels are always given precedents over the rest.  We all know no one book is more important that the other though.  They just have different parts of the complete story to tell in the totality of the founding and understanding of the Christian religion. 
So, let me break down some basics on your reply.  There is  approximately 63 scriptures quoted.  Of those 15 were from the Old Testament, and of the OT three were from the Pentateuch (first five books of the OT) part of the OT.   There was 48 from the New Testament, with five being quotes of scriptures from Matthew. 

The quoted scriptures from Matthew are:  4:6  4:17  5:5  9:35  10:5-7

Your question to me was:  Was the Body Of Christ introduced in Matthew like in Paul's epistles?

So back to the short answer – No.  I am in agreement with Blade, the concept of the BOC would not been introduced in the Gospels just yet.   
These are the quoted scriptures from Matthew in your reply:

4:6   And saith unto him, If thou be the Son of God, cast thyself down: for it is written, He shall give his angels charge concerning thee: and in their hands they shall bear thee up, lest at any time thou dash thy foot against a stone.

4:17   From that time Jesus began to preach, and to say, Repent: for the kingdom of heaven is at hand.

5:5   Blessed are the meek: for they shall inherit the earth.

9:35   And Jesus went about all the cities and villages, teaching in their synagogues, and preaching the gospel of the kingdom, and healing every sickness and every disease among the people.

10:5   These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into any city of the Samaritans enter ye not:          
10:6   But go rather to the lost sheep of the house of Israel.          
10:7   And as ye go, preach, saying, The kingdom of heaven is at hand.         

As you can see, even though Matthew is quoted in your reply, there is no reference in any manner to the BOC.   The closest I found was Matthew 16:17-19 and 18:17. These are the mentions of the Church and Peter.  Not a direct mention of the Church and the BOC as you, I believe, have implied as I understand what you are asking. 

I will include a quoted text from a doctrine journal just for a little food for thought type.  While I do not agree with all Pauline dogma on the BOC, I think it has a valid time and place, as well as any other theology out there.  I have always struggled with BOC so I admit that this reply is probably lacking in actually answering your question.

Three major problems exist for the traditional view. The first is God explicitly stated through the apostle Paul that the Church, the Body of Christ, was a “secret,” (μυστήριον). This presents a serious problem for the traditional view because Paul made this declaration long after Pentecost.
The second problem confirms the first point. No Biblical evidence exists to support the view that anyone at Pentecost recognized that the Church, i.e., the Body of Christ, had come into existence. On the contrary, the Scriptural evidence indicates at Pentecost the Twelve knew nothing about the Body of Christ. Peter only addressed Jews. But Paul declared the Church was that organism in which Jew and Gentile are equal. Peter obviously did not know this else he would have addressed Gentiles. Furthermore, only Paul wrote about the Body of Christ (Romans 12.5; 1 Corinthians 10.16, 17, 12.12, 13, 18, 25, 27; Ephesians 1.23, 2.16, 3.6, 4.4, 12, 16, 5.30; Colossians 1.18, 2.17, 19, 3.15). Such terminology is absent from the Gospels and the letters of Peter, James, John, Jude.
 
Hope this is at least a reasonable reply.