In the passage about the coming of Elias, both Matthew 17:10-13 and Mark 9:11-13 reference the prophecy of Elijah's return before the coming of the Messiah. The disciples ask Jesus why the scribes say that Elijah must come first, to which Jesus explains that Elijah has indeed come, in the form of John the Baptist. This passage is important as it fulfills the prophecy of Malachi 4:5-6 and highlights the connection between John the Baptist and the coming of Christ.

The similarities between the two passages lie in the disciples' confusion about Elijah's coming, and Jesus' explanation regarding John the Baptist's role. The differences may lie in the specific wording or context of the conversation. This passage is not found in other parts of the gospels. This passage serves as a reminder of the intricate and prophetic nature of the events leading up to Jesus' ministry. It also emphasizes the importance of recognizing and accepting God's appointed messengers, even if they may not fit our preconceived notions. In our daily lives, we can learn to be open to receiving God's messages and guidance, even if they come in disguises we do not expect.