Matthew 3:13-17
13 Then came Jesus from Galilee to Jordan unto John, to be baptized of him.
14 But John forbad him, saying, I have need to be baptized of you, and you come to me?
15 And Jesus answering said unto him, Allow it to be so now: for thus it becomes us to fulfil all righteousness. Then he allowed him.
16 And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him:
17 And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.
John 1:26
26 John answered them, saying, I baptize with water...
Acts 8:35-38
35 Then Philip opened his mouth, and began at the same scripture, and preached unto him Jesus.
36 And as they went on their way, they came unto a certain water: and the eunuch said, See, here is water; what hinders me from being baptized?
37 And Philip said, If you believe with all your heart, you may. And he answered and said, I believe that Jesus Christ is the Son of God.
38 And he commanded the chariot to stand still: and they went down both into the water, both Philip and the eunuch; and he baptized him.