That’s a good question. The word baptize means “to wash.” Peter, however, tells us that baptism isn’t the washing of dirt from the body, but rather a cleansing of the conscience (1 Peter 3:21).
Along with yesterday’s feast of the Epiphany and the wedding at Cana, today’s feast, the Baptism of the Lord, is one of the three epiphanies of Jesus’ humanity, according to the early Church Fathers.