A few years ago one of our famous Pop and Gospel singer penned and sang a song entitled "Could you be Messiah to me"? Well obviously that question need not be asked because indeed Jesus IS Messiah, so I will just let you have a listen to the song and see what you think.
I have been pondering on "what does it mean to confess Jesus as Messiah". I was led to this because a few Sundays back I was asked to take the pulpit of a pastor friend and practicing myself now to speak based on the lectionary reading for that day, I picked on 1 Tim 6:6-19. Verses 12-13 mentions about a "good confession" which Timothy and the Lord made. Now this has led me to think that Paul must have meant Mt 16: 16-18 (after all Scripture interprets Scripture). Similarly, in front of Pilate, Jesus did not deny that He was the Son of God, a King.
The confession, "Jesus is the Christ" according to Jesus is the rock on which his church will be built on. Yes, yes, Rome thinks of this differently and though the dogs may bark, the train still moves on, if you ask me. In short, what is the real message of the Church, is its message Peter is the Rock or Jesus is Messiah, the Christ? We know how we should answer that question and the answer is not both.
The statement that "Jesus is the Christ" is really the statement of the Gospel. It is the short hand way of saying Jesus is the appointed Lamb of God who takes away the sin of the world, taking it on him on the Cross and being raised from the dead for the forgiveness of the world. I believe this is what is meant when one makes that confession. I say this because Peter himself missed the meaning of this even though he confessed it. Right after confessing he prevents Jesus from going to the Cross and got called satan for it. So he missed the impact of what he confessed. To say that Jesus is Messiah is to say the message of the Gospel.
The Church which is being built by Christ then is a Church that confesses He is Messiah, it confesses the Gospel, for that is what Messiahship means.
I read in the Apology coincidentally these words in Article III...
To seek forgiveness of sins from Him was truly to acknowledge the Messiah. To think of Christ this way, to worship Him this way, is truly to believe.
Louis Armstrong sang a song "I'm confessin'" which is a confession of his love for his girl, but as Christians we are confessin too, we are confessing we are not the Christ, but Jesus is.