The bible makes it clear that baptism is not an optional extra. Jesus himself was baptised. He had no need to repent of sin because he was without sin.
However, he set an example for us to follow.
1. Mark 1:9 at that time Jesus came from Nazareth in Galilee and was baptised by John in the Jordan.
2. Jesus commanded his disciples in order to make more disciples they were to baptise them. Matt. 28:19.
3. The early believers were told to be baptised. Acts 2:38
4. Wherever the disciples went, they practiced baptism. Acts 8:12, 10:47,48
5. The apostle Paul was baptised. Acts 9:18
Baptism speaks of the death, burial, and resurrection of Jesus Christ. When we follow the Lord’s command to be baptised, we identify with him in this way. When you accepted Christ as your saviour, your sins were forgiven, you became “dead” to your past life. Baptism signifies this death. The water into which you are immersed in is like a “grave” and indicates that you are buried with Christ. As you rise from the water you are testifying that you are a new creation, rising to newness of life in Christ Jesus. Romans 5:17, 6:4, Col 2:12.
Baptism is an outward demonstration of what has happened in your heart at the point of salvation. Salvation can be a very person decision you make between you and God. But baptism is a public declaration and an outward demonstration of your personal decision you made for Christ