Baptism is from heaven, not men. Baptism is associated with belief.
Baptism plays a very important role in the Gospel of Matthew.
Matthew not only begins his Gospel with the baptism of John, but he also concludes his book with Jesus' command to His disciples to baptize. Since Matthew begins and ends his book with baptism, then, it must have played a very important part in the ministry of John and of Jesus. These are questions that I encourage each of you to reflect upon in your decision to follow Christ. During the last week of Jesus' earthly ministry, He questioned the chief priest and the elders of the people about John's baptism. If you answer me, I will tell you by what authority I am doing these things.