These events happen on the third day. This declares, “Behold the Lamb of God!” John 1:36. This was stated in verse 29. After this is stated, John’s disciples follow Jesus. Jesus sees the two men coming toward Him, and Jesus asks them a question. Jesus wants to know what they are seeking. They call Him rabbi, which means “teacher.” They wanted to know where Jesus was living. Jesus responds by asking them to follow Him in order to see where He is living. They followed Jesus to where He lived at that time. It was two hours before evening. One of the men who followed Jesus was Andrew, Simon Peter’s brother. Before going to where Jesus lived, Andrew went to where his brother was staying. He tells Simon Peter that he has found the Messias. This word means the “Christ.” He then takes Simon Peter to Jesus’ place. Before Andrew can introduce his brother to Jesus, Jesus says that he is the son of Jona. Immediately Jesus changes Peter’s name to Cephas which means “…a stone.” John 1:42.
I would like to deal with a few phrases that are repeated in both this passage and the previous passage. The first phrase is the title of the Son of God. The phrase “Behold the Lamb of God” is presented in verse 29 and verse 36. The word “behold” comes from the Greek word eido means “to see, calling attention to what may be seen or heard or mentally apprehended in any way. Lo, behold, observe. It is a particle of exclamation and calling attention to something present. See Matt. 25:20, 22, 25; Mark 11:21; John 1:47; 19:5. “Behold the man,” 19:14. To contemplate; …to be an eyewitness…” [AMG’s Complete Word Study Dictionaries, New Testament, p. 755] The word amnos is a masculine noun. It means “lamb of sacrifice.” [Ibid.] It became usual to designate Christ as amnos. This word is only found in John 1:29, 36; Acts 8:32, I Peter 1:19. It is also found in the Septuagint Exodus 12:5.
This is the third day in the sequence. The seventh day included the wedding at Cana John 2:1; Jewish weddings traditionally were on Wednesdays. It would make this third day the Sabbath Day. [Bible Exposition Commentary, New Testament, Volume 1 – Be Alive (John 1-12) – John – Chapter One. God is Here!, p.8] It was not a day of rest for John or Jesus. John was preaching and Jesus was gathering disciples.
John was glad to lose his two disciples to Jesus. This was expected once Jesus the Christ was on the scene. John said “He must increase, but I must decrease” John 3:30.
When Jesus asked the question “What seek ye?” (KJV), He was forcing them to define their purpose and goal in following Jesus. What did they expect–a man who would start a revolution against Rome? Jesus did not come for that purpose. They had no idea that their lives would be transformed by the Son of God.