Passage
He saith unto them, Come, and ye shall see. They came therefore and saw where he abode; and they abode with him that day: it was about the tenth hour.
He saith unto them, Come, and ye shall see. They came therefore and saw where he abode; and they abode with him that day: it was about the tenth hour.
John 1:37 And the two disciples heard him speak, and they followed Jesus.
John 1:38 And Jesus turned, and beheld them following, and saith unto them, What seek ye? And they said unto him, Rabbi (which is to say, being interpreted, Teacher), where abideth thou?
John 1:39 He saith unto them, Come, and ye shall see. They came therefore and saw where he abode; and they abode with him that day: it was about the tenth hour.
John 1:40 One of the two that heard John [speak], and followed him, was Andrew, Simon Peter`s brother.
John 1:41 He findeth first his own brother Simon, and saith unto him, We have found the Messiah (which is, being interpreted, Christ).
The verse centers on "saith", "come", "shall", "came", "therefore", "where", and "abode". It is saying that the verse draws attention to "saith" and "come", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 38's "And Jesus turned and beheld them following..." into verse 40's "One of the two that heard John...", so "saith" and "come" belong inside that flow. In John context, the local focus is the identity of Jesus, new birth, eternal life, and belief and unbelief.
A plain takeaway is to answer the verse's own emphasis on "saith" and "come" with trust shaped by these words, not by a vague optimism outside the passage.