Hebrews 6:9

Having therefore sufficiently rebuked them, and alarmed and wounded them, he in turn heals them, so as not to cast them down too much, and make them supine. For he that strikes one that is "dull," makes him more dull. So then he neither flatters them throughout, lest he should make them supine, nor does he wound them throughout, but having inserted a little to wound them, he applies much to heal in what follows. For what does he say? We speak not these things, as having condemned you, nor as thinking you to be full of thorns, but fearing lest this should come to pass. For it is better to terrify you by words, that ye may not suffer by the realities. And this is specially of Paul's wisdom. Moreover he did not say, We think, or, we conjecture, or, we expect, or, we hope, but what? "But beloved, we are persuaded better things of you, and things that accompany salvation, though we thus speak." Which word he also used in writing to the Galatians: "But I am persuaded of you in the Lord, that ye will be none otherwise minded." (Gal. v. 10.) For in that instance, inasmuch as they were greatly to be condemned, and he could not praise them from things present, he does it from things future ("that ye will be none otherwise minded," he says): he said not, ye are, but "ye will be none otherwise minded." But here he encourages them from things present. "We are persuaded better things of you, beloved, and things that accompany to salvation, though we thus speak." And since he was not able to say so much from things present, he confirms his consolation from things past.