The Gospel for this Sunday is St. Matthew’s account of the Transfiguration of Christ. Jesus has begun to speak to the Apostles about the fact that He is going to Jerusalem, and there He will be arrested, abused, and murdered. They are horrified and terrified by these words. If this will be Jesus’ fate, what will happen to us? Have we backed the wrong man, believing Him, falsely, of being the Messiah? 
    
The appearance of Moses, the Lawgiver, and Elijah, the Prophet, lets the Apostles know that the Law and the Prophets (the name the Hebrews give to the Old Testament) testify to the fact that Jesus is indeed the Holy One. And the voice of the Father reaffirms that Jesus is His Son and the Savior of the World.
    
Perhaps we may have questions or doubts of our own.  The Transfiguration speaks to those doubts and assures us that Christ is there for us.