Jesus’ Baptism in Water.
The baptism of Jesus himself as performed by John must of necessity have had a meaning and purpose quite different from John’s baptism, as Jesus “committed no sin, nor was deception found in his mouth.” (1Pe 2:22) So he could not submit to an act symbolizing repentance. Undoubtedly it was for this reason that John objected to baptizing Jesus. But Jesus said: “Let it be, this time, for in that way it is suitable for us to carry out all that is righteous.”—Mt 3:13-15.
Luke states that Jesus was praying at the time of his baptism. (Lu 3:21) Further, the writer of the letter to the Hebrews says that when Jesus Christ came “into the world” (that is, not when he was born and could not read and say these words, but when he presented himself for baptism and began his ministry) he was saying, in accord with Psalm 40:6-8 (LXX): “Sacrifice and offering you did not want, but you prepared a body for me.*.*.*. Look! I am come (in the roll of the book it is written about me) to do your will, O God.” (Heb 10:5-9)
Jesus was by birth a member of the Jewish nation, which nation was in a national covenant with God, namely, the Law covenant. (Ex 19:5-8; Ga 4:4) Jesus, by reason of this fact, was therefore already in a covenant relationship with Jehovah God when he thus presented himself to John for baptism.
Jesus was there doing something more than what was required of him under the Law. He was presenting himself to his Father Jehovah to do his Father’s “will” with reference to the offering of his own “prepared” body and with regard to doing away with animal sacrifices that were offered according to the Law.
The apostle Paul comments: “By the said ‘will’ we have been sanctified through the offering of the body of Jesus Christ once for all time.” (Heb 10:10) The Father’s will for Jesus also involved activity in connection with the Kingdom, and for this service too Jesus presented himself. (Lu 4:43; 17:20,*21)
Jehovah accepted and acknowledged this presentation of his Son, anointing him with holy spirit and saying: “You are my Son, the beloved; I have approved you.”—Mr 1:9-11; Lu 3:21-23; Mt 3:13-17.
Insight on the scriptures pg 249-250