Shortly after he had baptized Jesus, John the Baptist began to denounce Herod Antipas, the tetarch of Galilee. Herod had divorced his own wife and taken Herodias, the wife of his half- brother Philip and also his own niece. John the Baptist declared, "I is not lawful for you to have her," so Herod threw him into prison.
Not only did Herod fear John and his disciples, he also knew him to be a righteous man, so he did not kill him. Herodias determined to bring about John's death. From prison John followed Jesus's ministry, and sent messengers to question him (Luke 7:19-29). One day Herod gave a fine banquet to celebrate his birthday. His entire court was present as well as other powerful and influential Palestinians. Herodias's daughter Salome so pleased Herod when she danced to entertain the company that he promised her whatever she would ask--even half of his kingdom. Salome asked her mother for counsel and was told to request the head of the Baptist (Matthew 14:1-12).
Because of his pride Herod, though deeply sorry, could not decline the request; thus, as Saint Augustine says, "an oath rashly taken was criminally kept." He sent a soldier of the guard to behead John in prison. Thus, the "voice crying in the wilderness" was silenced. The head was placed on a platter and taken to Salome, who gave it to her mother.
When John's disciples heard what had happened, they took away his body and laid it in a tomb, probably at Sebaste in Samaria, where he was venerated in the 4th century. His tomb was desecrated by Julian the Apostate. John's relics are claimed by many places, but it is unlikely that they are authentic. His cultus is ancient in both the East and West, because intercession to Saint John was believed to the coming of Christ in the soul, just as it was in history. There are a vast number of medieval churches in England dedicated to Saint John. He is the patron of the Knights Hospitallers, whose principal work was to guard the Holy Sepulchre at Jerusalem and protect pilgrims