1. Exposition

What was the mode of baptism used?

Matthew 3:16 (ESV)

16 And when Jesus was baptized, immediately he went up from the water, and behold, the heavens were opened to him, and he saw the Spirit of God descending like a dove and coming to rest on him;

The mode of baptism is not mentioned. It is not known if Jesus was baptized by immersion, affusion, or by sprinkling water. Ancient Christian mosaics depict the baptism of Jesus by affusion while Jesus was standing in the water.