When the two disciples heard him say this, they followed Jesus.
Andrew, Simon Peter’s brother, was one of the two who heard what John had said and who had followed Jesus.John 1:40 NIV
Turning around, Jesus saw them following and asked, “What do you want?”They said, “Rabbi” (which means “Teacher”), “where are you staying?”John 1:38 NIV
When he saw Jesus passing by, he said, “Look, the Lamb of God!”John 1:36 NIV