1 Corinthians 13:12; 1 Corinthians 14:37; 1 Corinthians 16:18

12 For now we see through a glass, darkly ; but then face to face: now I know in part; but then shall I know even as also I am known .
37 If any man think himself to be a prophet, or spiritual, let him acknowledge that the things that I write unto you are the commandments of the Lord.
18 For they have refreshed my spirit and yours: therefore acknowledge ye them that are such.