And Jesus answering said unto him, Suffer [it to be so] now: for thus it becometh us to fulfil all righteousness. Then he suffered him.
Note 1 at Mt 3:15: Jesus had no sin (1Pe 2:22); therefore, He didn't need John's baptism of repentance for the remission of His sins, yet He was baptized. This had two purposes: (1) It publicly announced Jesus as the Lamb of God (Joh 1:29 and 31). (2) It fulfilled the prophecy of Da 9:24 as Jesus was anointed (Ac 10:38) by the Holy Ghost (Mt 3:16) and empowered to begin His ministry. If Jesus needed to be anointed, how much more do we (Lu 24:49 with Ac 1:8 and 2:1-4)?