(27) But a certain fearful looking for.--Better, But a fearful awaiting of judgment, and a jealousy of fire that shall devour the adversaries. For Christ's "waiting" servants the thought of "judgment" is lost in that of "salvation" (Hebrews 9:27-28); to these sinners nothing is left but the awaiting of judgment. The next words are a partial quotation, or an adaptation, of Isaiah 26:11 : "Let them see (and be ashamed) the zeal for the people; yea, fire shall devour Thine adversaries." (The Greek translation gives the second clause correctly, but not the former part of the sentence.) In the prophetic imagery of the Old Testament the destruction of the enemies of Jehovah is but the other aspect of His zeal or jealousy for His people. This imagery was familiar to every Hebrew; and no words could show more powerfully than these that to forsake Christ for Judaism was (not to join, but) to abandon "the people of God." For such apostates there remaineth the zeal, the jealous wrath, of a devouring fire. (Comp. Hebrews 12:29; Malachi 4)

10:26-31 The exhortations against apostacy and to perseverance, are urged by many strong reasons. The sin here mentioned is a total and final falling away, when men, with a full and fixed will and resolution, despise and reject Christ, the only Saviour; despise and resist the Spirit, the only Sanctifier; and despise and renounce the gospel, the only way of salvation, and the words of eternal life. Of this destruction God gives some notorious sinners, while on earth, a fearful foreboding in their consciences, with despair of being able to endure or to escape it. But what punishment can be sorer than to die without mercy? We answer, to die by mercy, by the mercy and grace which they have despised. How dreadful is the case, when not only the justice of God, but his abused grace and mercy call for vengeance! All this does not in the least mean that any souls who sorrow for sin will be shut out from mercy, or that any will be refused the benefit of Christ's sacrifice, who are willing to accept these blessings. Him that cometh unto Christ, he will in no wise cast out.But a certain fearful looking for of judgment,.... Either of some outward visible judgment in this life, which sometimes falls on such persons; or of the particular judgment which immediately follows after death; or of the universal judgment, after the resurrection, and the dreadful sentence of condemnation which will then pass, and be immediately executed; and which will be done by Christ, and according to truth, and in strict justice; it is certain, and there will be no escaping it, for it will be general. Now there is in this life an expectation in men of a future judgment, and in wicked men it is a fearful one; it is dreaded by them, and more especially in such men before described, when their consciences are awakened; it is a very dreadful one, inexpressibly so:

and fiery indignation, which shall devour the adversaries; which is to be understood, not of the fire of purgatory, for this is after judgment, that is pretended to be before it; this devours, that only purges, according to the Papists; this is for adversaries, that, as is supposed, is for friends: but perhaps some fiery judgment, expressive of the wrath and indignation of God, such as befell Sodom and Gomorrah, the two sons of Aaron, Nadab, and Abihu, and the men that rose up with Korah against Moses and Aaron: or rather the fire of hell, which is not corporeal and material, but is the wrath of God let down into the conscience; which shows the vile nature of sin, the strictness of God's justice, and the intolerableness of future punishment: and this is said to "devour the adversaries"; not only open ones, but secret, underhanded enemies, as the word here signifies; as such apostates are, before described, to God, and Christ, and the Spirit; to the Gospel, its doctrine, discipline, and ordinances; and to the children of God, and to the power of godliness in them: and with the fire of God's wrath they shall be devoured; not so as to be annihilated, but shall be eternally destroyed, both soul and body; that is, everlastingly punished, or punished with everlasting destruction.