Verses with the word acknowledge in the New Testament (3 verses):

1 Corinthians 14:37
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.

1 Corinthians 16:18
For they have refreshed my spirit and your's: therefore acknowledge ye them that are such.

2 Corinthians 1:13
For we write none other things unto you, than what ye read or acknowledge; and I trust ye shall acknowledge even to the end;