John 1:36

32 Then John testified, “I saw the Spirit descending from heaven like a dove and resting on Him.

33 I myself did not know Him, but the One who sent me to baptize with water told me, ‘The man on whom you see the Spirit descend and rest is He who will baptize with the Holy Spirit.’

34 I have seen and testified that this is the Son of God.”

35 The next day John was there again with two of his disciples.

36 When he saw Jesus walking by, he said, “Look, the Lamb of God!”

37 And when the two disciples heard him say this, they followed Jesus.

38 Jesus turned and saw them following. “What do you want?” He asked. They said to Him, “Rabbi” (which means Teacher), “where are You staying?”

39 “Come and see,” He replied. So they went and saw where He was staying, and spent that day with Him. It was about the tenth hour.

40 Andrew, Simon Peter’s brother, was one of the two who heard John’s testimony and followed Jesus.

Read all of John 1