The Baptism of the Lord has historically been associated with the celebration of Epiphany. Even today, the Eastern Christian feast of Theophany, celebrated on January 6 as a counterpart to the Western feast of Epiphany, focuses primarily on the Baptism of the Lord as the revelation of God to man.
Baptism of Our Lord
Jesus did not need to be baptized.He was without sin.Even John said in Matthew 3,
i Then Jesus came from Galilee to John at the Jordan to be baptized by him. 14* John tried to prevent him, saying, “I need to be baptized by you, and yet you are coming to me?” 15Jesus said to him in reply, “Allow it now, for thus it is fitting for us to fulfill all righteousness.” Then he allowed him. 16* j After Jesus was baptized, he came up from the water and behold, the heavens were opened [for him], and he saw the Spirit of God descending like a dove [and] coming upon him. 17And a voice came from the heavens, saying, “This is my beloved Son,* with whom I am well pleased.”k
Jesus’ baptism sanctified the water and showed us the importance of Baptism for the remission of sin.After His baptism Jesus went out with the apostles and baptized.Jesus showed Himself to be God(Trinity).