St. John the Baptist was a significant figure in Christianity, known for his role as a prophet and for baptizing Jesus Christ. He is often depicted wearing simple clothing made of camel's hair and eating locusts and wild honey. His teachings emphasized repentance and preparation for the coming of the Messiah, making him a key precursor to Jesus. John was born to Zechariah and Elizabeth, and his birth is celebrated in the Christian tradition. He baptized people in the Jordan River, calling them to turn away from sin. Ultimately, he was imprisoned and executed by King Herod, which is commemorated in various Christian traditions.