Now it happened, when all the people were baptized, Jesus also had been baptized, and was praying. The sky was opened,
In this connection, one of the reasons that may not be assigned to Christ's baptism is this, that he was baptized to set us an example how we might follow him in baptism, since it is impossible for believer's baptism to correspond to Christ's.  It was not necessary for him but it is necessary for men.  He was baptized at about the age of thirty, and that is far longer than any mortal's baptism should be delayed.  Believer's baptism is "for the remission of sins"; but Christ's was to fulfill all righteousness.