Jesus was baptized by John the Baptist, his cousin. John the Baptist’s job was to prepare the people for Jesus’ ministry. Jesus’ baptism by John marked the beginning of his ministry.
Who was John the Baptist?
John the Baptist was a preacher who announced the coming of the Savior of the world. He prepared the people by teaching them to repent of their sins and baptizing those who repented ( Mark 1: 4-5 ). John the Baptist was Jesus’ cousin on his mother’s side and was a few months older than him. His ministry was eventually replaced and completed by the ministry of Jesus.
Find out here: who was John the Baptist?
Why did John baptize Jesus?
John baptized Jesus as a sign to reveal that Jesus was the promised Savior. The people of Israel were already waiting for that Savior and thought they could be John the Baptist. But when Jesus was baptized, the Holy Spirit descended on him like a dove and God said “This is my beloved son, in whom I am well pleased”. With this public confirmation of who he was, Jesus began to preach ( Matthew 3: 16-17 ).
Jesus’ baptism also proved that Jesus was pure, without sin. Baptism was a way of showing that someone had rejected sin and dedicated himself to God. Jesus had no sin to repent of but his baptism confirmed that he was totally dedicated to God ( Matthew 3: 14-15 ).
See here: What does the Bible say about baptism?
When John baptized Jesus, he also served as an example for all of us. The Bible says that we are to be imitators of Jesus. Baptism is an important public statement, showing that we are cleansed from sin and that we follow Jesus.