What types of holy and things did st John the Baptist do?

St. John the Baptist is known for several significant actions that underscore his holiness. He preached repentance and baptized people in the Jordan River, symbolizing purification and the forgiveness of sins. He also played a pivotal role in preparing the way for Jesus, proclaiming His coming and identifying Him as the Messiah. Additionally, his ascetic lifestyle, marked by humility and dedication to God, exemplified his commitment to holiness.