4:19-22 We need no more to make us happy, than to have the Lord Jesus Christ with our spirits; for in him all spiritual blessings are summed up. It is the best prayer we can offer for our friends, that the Lord Jesus Christ may be with their spirits, to sanctify and save them, and at last to receive them to himself. Many who believed as Paul, are now before the throne, giving glory to their Lord: may we be followers of them.
19. Prisca and Aquila—(Ac 18:2, 3; Ro 16:3, 4; 1Co 16:19, written from Ephesus, where therefore Aquila and Priscilla must then have been).
household of Onesiphorus—If he were dead at the time, the "household" would not have been called "the household of Onesiphorus." He was probably absent (see on 2Ti 1:16).