Passage
Simon Peter therefore beckoned to him and said to him: Who is it of whom he speaketh?
Simon Peter therefore beckoned to him and said to him: Who is it of whom he speaketh?
John 13:22 The disciples therefore looked one upon another, doubting of whom he spoke.
John 13:23 Now there was leaning on Jesus' bosom one of his disciples, whom Jesus loved.
John 13:24 Simon Peter therefore beckoned to him and said to him: Who is it of whom he speaketh?
John 13:25 He therefore, leaning on the breast of Jesus, saith to him: Lord, who is it?
John 13:26 Jesus answered: He it is to whom I shall reach bread dipped. And when he had dipped the bread, he gave it to Judas Iscariot, the son of Simon.
The verse centers on "simon", "peter", "therefore", "beckoned", "said", and "speaketh". 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 23's "Now there was leaning on Jesus' bosom..." into verse 25's "He therefore leaning on the breast of...", 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.