Lk 7: 24-30
When the messengers of John had left, Jesus began to speak to the crowds about John. “What did you go out to the desert to see – a reed swayed by the wind?
Then what did you go out to see? Someone dressed in fine garments? Those who dress luxuriously and live sumptuously are found in royal palaces.
Then what did you go out to see? A prophet? Yes, I tell you, and more than a prophet.
This is the one about whom scripture says: ‘Behold, I am sending my messenger ahead of you, he will prepare your way before you.’
I tell you, among those born of women, no one is greater than John; yet the least in the kingdom of God is greater than he.”
(All the people who listened, including the tax collectors, and who were baptized with the baptism of John, acknowledged the righteousness of God;
but the Pharisees and scholars of the law, who were not baptized by him, rejected the plan of God for themselves.)
Source: New American Bible
Catechism of the Catholic Church
719 John the Baptist is “more than a prophet.” In him, the Holy Spirit concludes his speaking through the prophets. John completes the cycle of prophets begun by Elijah. He proclaims the imminence of the consolation of Israel; he is the “voice” of the Consoler who is coming. As the Spirit of truth will also do, John “came to bear witness to the light.” In John’s sight, the Spirit thus brings to completion the careful search of the prophets and fulfills the longing of the angels. “He on whom you see the Spirit descend and remain, this is he who baptizes with the Holy Spirit. And I have seen and have borne witness that this is the Son of God. . . . Behold, the Lamb of God.”