v. 21
Paul signals confidence in Philemon’s response and states that he Philemon will do more than what has been explicitly requested.
v. 22
Paul asks Philemon to lodging, linking the request to his that he will be returned to them through their prayers, implying a change in present restrictions.
vv. 21–22 (flow of thought)
Confidence about Philemon’s action and the anticipated visit mutually reinforce each other: the expected face-to-face meeting makes the appeal time-bound and relationally accountable.