where did the idea for baptism come from?
The first aspect of baptism in the Gospels we need to consider is the mindset of Judaism. When trying to understand the Gospels’ teaching on baptism, one might ask the question: Where did baptism come from? We don’t find anyone being baptized in the Old Testament, and we rarely find words relating to baptism used in the Old Testament. However, the first person we encounter in Mark’s Gospel is John the Baptist, who comes baptizing. How, then, would original readers of the Gospels have interpreted baptism? The first thing that would have shaped the thinking of the original audience would have been the meaning of the terms being used for baptism. The terms for baptism come from the Greek root bapto, which was used by ancient Greeks to denote a ship sinking into the water and being submerged. This word rarely appears in the Old Testament, only showing up twice in the canonical books of the LXX (Isaiah 21:4; 2 Kings 5:14), indicating the New Testament writers used a term to describe baptism...