Passage
But he, leaning on the breast of Jesus, says to him, Lord, who is it?
But he, leaning on the breast of Jesus, says to him, Lord, who is it?
John 13:23 Now there was at table one of his disciples in the bosom of Jesus, whom Jesus loved.
John 13:24 Simon Peter makes a sign therefore to him to ask who it might be of whom he spoke.
John 13:25 But he, leaning on the breast of Jesus, says to him, Lord, who is it?
John 13:26 Jesus answers, He it is to whom I, after I have dipped the morsel, give it. And having dipped the morsel, he gives it to Judas [son] of Simon, Iscariote.
John 13:27 And, after the morsel, then entered Satan into him. Jesus therefore says to him, What thou doest, do quickly.
The verse centers on "leaning", "breast", "jesus", "says", and "lord". It is saying that the verse draws attention to "leaning" and "breast", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 24's "Simon Peter makes a sign therefore to..." into verse 26's "Jesus answers He it is to whom...", so "leaning" and "breast" 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 "leaning" and "breast" with trust shaped by these words, not by a vague optimism outside the passage.