Passage
And, after the morsel, then entered Satan into him. Jesus therefore says to him, What thou doest, do quickly.
And, after the morsel, then entered Satan into him. Jesus therefore says to him, What thou doest, do quickly.
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.
John 13:28 But none of those at table knew why he said this to him;
John 13:29 for some supposed, because Judas had the bag, that Jesus was saying to him, Buy the things of which we have need for the feast; or that he should give something to the poor.
The verse centers on "after", "morsel", "entered", "satan", "jesus", "therefore", "says", and "thou". It is saying that the verse draws attention to "after" and "morsel", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 26's "Jesus answers He it is to whom..." into verse 28's "But none of those at table knew...", so "after" and "morsel" 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 "after" and "morsel" with trust shaped by these words, not by a vague optimism outside the passage.