Passage
and having looked on Jesus walking, he saith, `Lo, the Lamb of God;'
and having looked on Jesus walking, he saith, `Lo, the Lamb of God;'
John 1:34 and I have seen, and have testified, that this is the Son of God.'
John 1:35 On the morrow, again, John was standing, and two of his disciples,
John 1:36 and having looked on Jesus walking, he saith, `Lo, the Lamb of God;'
John 1:37 and the two disciples heard him speaking, and they followed Jesus.
John 1:38 And Jesus having turned, and having beheld them following, saith to them, `What seek ye?' and they said to them, `Rabbi, (which is, being interpreted, Teacher,) where remainest thou?'
The verse centers on "having", "looked", "jesus", "walking", "saith", and "lamb". It is saying that the verse draws attention to "having" and "looked", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 35's "On the morrow again John was standing..." into verse 37's "and the two disciples heard him speaking...", so "having" and "looked" 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 "having" and "looked" with trust shaped by these words, not by a vague optimism outside the passage.