For they have refreshed my spirit and yours: therefore acknowledge ye them that are such.
Refreshed my spirit and yours. "Yours" will be refreshed on receiving this letter, by knowing that 'my spirit is refreshed' by their having come to me; and (perhaps) by the good report they give of many of you (1 Corinthians 1:4-8; 2 Corinthians 7:13: cf. Zechariah 6:8).
Acknowledge ye them - by a kind reception (1 Thessalonians 5:12). "Know" them in their true worth, and treat them accordingly.