The messenger sent ahead
Jesus identified John the Baptist as the promised messenger sent ahead to prepare the way, using wording drawn from Malachi.
As John’s disciples were leaving, Jesus began to speak to the crowds about John: “What did you go out into the wilderness to see? A reed swaying in the wind? Otherwise, what did you go out to see? A man dressed in fine clothes? Look, those who wear fine clothing are found in kings’ palaces. What then did you go out to see? A prophet? Yes, I tell you, and more than a prophet.
Malachi 3:1 promises that God will send His messenger to prepare the way; in Matthew 11:10 Jesus uses the same promise and says that John is the one about whom it was written.