John's birth is announced in Luke before the birth of Jesus. The angel Gabriel tells Zechariah that his son will be filled with the Holy Spirit and will prepare a people for the Lord. As an adult, John appeared in the wilderness preaching repentance and baptizing those who confessed their sins. His clothing and ministry recalled the prophetic tradition, and the Gospels connect him with
Isaiah's voice crying in the wilderness. John insisted that his baptism was preparatory and that the coming one was far greater. Jesus came to John for baptism, and John became a witness to Jesus' identity. John also confronted
Herod Antipas over his unlawful marriage to
Herodias. This led to John's imprisonment. At Herod's birthday celebration, Herodias' daughter requested John's head, and Herod ordered his execution. Jesus spoke of John with exceptional honor while also emphasizing that John belonged to the period of preparation for the kingdom.