'Affirm' in the Bible

Lo, I am against the prophets, An affirmation of Jehovah, Who are making smooth their tongue, And they affirm -- an affirmation.

and not, as we are evil spoken of, and as certain affirm us to say -- 'We may do the evil things, that the good ones may come?' whose judgment is righteous.

Stedfast is the word; and concerning these things I counsel thee to affirm fully, that they may be thoughtful, to be leading in good works -- who have believed God; these are the good and profitable things to men,