Deuteronomy 13:14

13:14 then shall you inquire, and make search, and ask diligently; and, behold, if it be truth, and the thing certain, that such abomination is done in the midst of you,
-World English Bible

Other Translation

13:14 Then shalt thou inquire, and make search, and ask diligently; and, behold, [if it be] truth, [and] the thing certain, [that] such abomination is wrought among you;
-King James Version