Deuteronomy 13:14

Evil men have gone out from you, and have caused all the inhabitants of their land to fall away, saying, Let us go and worship other gods, whom ye knew not,

then you shall enquire and ask, and search diligently, and behold, [if] the thing is clearly true, and this abomination has taken place among you,

Then shalt thou enquire, and make search, and ask diligently; and, behold, if it be truth, and the thing certain, that such abomination is wrought among you;