The answer is: Elijah and Moses

Matthew 17:3

The Transfiguration of Jesus is a captivating event that showcases the connection between the Old and New Testaments. When Jesus ascends the mountain, He is joined by two significant figures: Elijah and Moses. Their presence is quite remarkable because both played crucial roles in Jewish history. Moses, the lawgiver, led the Israelites out of Egypt and brought them the Ten Commandments. He symbolizes the law. Elijah, a prophetic fire-brand, represents the prophets — bold and unyielding, urging the people to turn back to God. This pairing emphasizes the message that Jesus fulfills both the Law and the Prophets.

An interesting note is that this event occurred immediately after Jesus revealed to His disciples the impending suffering He would face. The Transfiguration serves to strengthen their faith, illuminating that Jesus is indeed who He claims to be. It's a divine encouragement, showing a glimpse of His heavenly glory.

In later interpretations, remnants of this event echo throughout the New Testament. For instance, Jesus mentions Moses in discussions with various religious leaders and refers to Elisha, who closely resembles Elijah, affirming the prophetic legacy. Plus, it’s intriguing to know that mountaintops are frequently where important biblical events take place—think about Moses on Sinai and Elijah on Horeb!

So, in the grand tapestry of scripture, the Transfiguration stands out as a moment where past revelations meet God’s unfolding purposes. It invites deeper reflection on legacy, hope, and divine engagement across the ages.