en_tn_condensed/jhn/21/22.md

Jesus said to him

"Jesus said to Peter"

If I want him to stay

Here "him" refers to the "disciple whom Jesus loved" in John 21:20.

I come

This refers to Jesus's second coming, his return to earth from heaven.

what is that to you?

This remark appears in the form of a question to express a mild rebuke. Alternate translation: "that is not your concern." or "you should not be concerned about that." (See: rc://en/ta/man/jit/figs-rquestion)