“And by their prayer for you, which long after you for the exceeding grace of God in you.”
King James Version (KJV)
9:13 Your avowed subjection - Openly testified by your actions. To all men - Who stand in need of it.
9:15 His unspeakable gift - His outward and inward blessings, the number and excellence of which cannot he uttered.
2Co 9:14 And by their prayer for you. Thus, filled with affection for you, and longing for you on account of the proof they had of God's grace to you, they glorify God by prayer for you.