Passage
He, leaning back thus on Jesus’ bosom, said to Him, “Lord, who is it?”
John 13:25 (LSB)
Nearby Context
John 13:23 There was reclining on Jesus’ bosom one of His disciples, whom Jesus loved.
John 13:24 So Simon Peter gestured to him to inquire, “Who is the one of whom He is speaking?”
John 13:25 He, leaning back thus on Jesus’ bosom, said to Him, “Lord, who is it?”
John 13:26 Jesus answered, “He is the one for whom I shall dip the piece of bread and give it to him.” So when He had dipped the piece of bread, He took and gave it to Judas, the son of Simon Iscariot.
John 13:27 And after the piece of bread, Satan then entered into him. Therefore Jesus said to him, “What you do, do quickly.”
Study Lenses
The verse centers on "leaning", "back", "thus", "jesus", "bosom", "said", and "lord". It is saying that the verse draws attention to "leaning" and "back", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 24's "So Simon Peter gestured to him to..." into verse 26's "Jesus answered He is the one for...", so "leaning" and "back" 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 "back" with trust shaped by these words, not by a vague optimism outside the passage.