John Chrysostom

And having spoken concerning the Son, both what related to the Economy, and what related to the Creation, and to His sovereignty, and having shown His co-equal dignity, and that as absolute Master He ruleth not men only but also the powers above, he next exhorts them, having made out his argument, that we ought to give heed to the things which have been heard. "Wherefore we ought to give more earnest heed" (saith he) "to the things which we have heard." Why "more earnest"? Here he meant "more earnest" than to the Law: but he suppressed the actual expression of it, and yet makes it plain in the course of reasoning, not in the way of counsel, nor of exhortation. For so it was better.

Why ought we to "give more earnest heed to the things which we have heard"? were not those former things of God, as well as these? Either then he meaneth "more earnest" than [to] the Law, or "very earnest"; not making comparison, God forbid. For since, on account of the long space of time, they had a great opinion of the Old Covenant, but these things had been despised as yet new, he proves (more than his argument required) that we ought rather to give heed to these. How? By saying in effect, Both these and those are of God, but not in a like manner. And this he shows us afterwards: but for the present he treats it somewhat superficially, but afterwards more clearly, saying "For if that first covenant had been faultless", and many other such things: "for that which decayeth and waxeth old is ready to vanish away." But as yet he ventures not to say any such thing in the beginning of his discourse, nor until he shall have first occupied and possessed his hearer by his fuller [arguments].

Why then ought we "to give more earnest heed"? "Lest at any time," saith he, "we should let them slip" - that is, lest at any time we should perish, lest we should fall away. And here he shows the grievousness of this falling away, in that it is a difficult thing for that which hath fallen away to return again, inasmuch as it hath happened through wilful negligence. And he took this form of speech from the Proverbs. For, saith he, "my son [take heed] lest thou fall away," showing both the easiness of the fall, and the grievousness of the ruin. That is, our disobedience is not without danger. And while by his mode of reasoning he shows that the chastisement is greater, yet again he leaves it in the form of a question, and not in the conclusion. For indeed this is to make one's discourse inoffensive, when one does not in every case of one's self infer the judgment, but leaves it in the power of the hearer himself to give sentence: and this would render them more open to conviction. And both the prophet Nathan doth the same in the Old [Testament], and in Matthew Christ, saying, "What will He do to the husbandmen" of that vineyard? so compelling them to give sentence themselves: for this is the greatest victory.