No 1

(Its origin and First Mentioned)

The Church of Jesus Christ was first mentioned in Matthew 16:18 when Jesus said to Peter: "That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it."  The "rock" that Jesus mentioned is the words that He had just said: "Thou art the Christ, the Son of the living God" (vs16).  Jesus Christ is the corner stone and the head of His Church; we are the members.