Jesus took Peter, John, and James and went up the mountain to pray. While he was praying his face changed in appearance and his clothing became dazzling white. And behold, two men were conversing with him, Moses and Elijah, who appeared in glory and spoke of his exodus that he was going to accomplish in Jerusalem.
Gospel's Commentary
Today, in a spectacular scene, we find Jesus -transfigured- speaking with Moses and Elijah. What are they talking about? The death of the Lord, for which there were only a few days left.
-Peter, James and John will suffer with the detention of the Lord. That's why Jesus shows them the prize ... which is a prize for love.