Passage
Simon Peter saith to him: Lord, whither goest thou? Jesus answered: Whither I go, thou canst not follow me now: but thou shalt follow hereafter.
Simon Peter saith to him: Lord, whither goest thou? Jesus answered: Whither I go, thou canst not follow me now: but thou shalt follow hereafter.
John 13:34 A new commandment I give unto you: That you love one another, as I have loved you, that you also love one another.
John 13:35 By this shall all men know that you are my disciples, if you have love one for another.
John 13:36 Simon Peter saith to him: Lord, whither goest thou? Jesus answered: Whither I go, thou canst not follow me now: but thou shalt follow hereafter.
John 13:37 Peter saith to him: Why cannot I follow thee now? I will lay down my life for thee.
John 13:38 Jesus answered him: Wilt thou lay down thy life for me? Amen, amen, I say to thee, the cock shall not crow, till thou deny me thrice.
The verse centers on "simon", "peter", "saith", "lord", "whither", "goest", "thou", and "jesus". It is saying that the verse draws attention to "simon" and "peter", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 35's "By this shall all men know that..." into verse 37's "Peter saith to him Why cannot I...", so "simon" and "peter" 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 "simon" and "peter" with trust shaped by these words, not by a vague optimism outside the passage.