At the same time, prepare a guest room for me, for I am hoping through your prayers to be granted to you.

ἅμα δὲ καὶ ἑτοίμαζέ μοι ξενίαν· ἐλπίζω γὰρ ὅτι διὰ τῶν προσευχῶν ὑμῶν χαρισθήσομαι ὑμῖν.

Early Fathers

John Chrysostom (349-407)

Homilies on Philemon

Ver. 22. But withal prepare me also a lodging: for I trust that through your prayers I shall be given unto you.

This also was the part of one who was exceedingly confident — or rather this too was in behalf of Onesimus, that not being indifferent, but knowing that he upon his return would know the things relating to him, they might lay aside all remembrance of the wrong, and might the rather grant the favor. For great was the influence and the honor of Paul residing among them, of Paul in his age, of Paul after imprisonment. Again, it is a proof of their love that he says that they pray; and to attribute to them so much as that they pray for him. For although I be now in danger, yet nevertheless you will see me if you pray for it.

[For moral, see Phm 1:25]