Something promised in a court oath crossword clue

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I must admit that this clue is not so easy. It took us some time to find the right answer to Something promised in a court oath. You already know the answers has 13 letters. If you still cannot find it, here it comes.

Clue: Something promised in a court oath
Answer: THEWHOLETRUTH
Now you know the answer to Something promised in a court oath. It’s time to go back to find the answers to others clues on New York Times January 21, 2019

Wrong answer?
Well some clues might have different answers. For example, the clue “Resort hotel in Bahamas” could have 2 answers; Atlantis and Nassau, found respectively on USA Today crossword of May 5, 2008 and Washington Post of Oct. 2, 2006.