We have seen how the writer approached the subject which is the chief theme of this last division of this Epistle. The coming of the Lord, for judgment upon His adversaries, for salvation to His people, draws nigh. In the midst of dangers and judgments God’s righteous servant shall live, and the ground, of his life is his steadfast faith — if he shrink back, destruction will overtake him. “Our principle of action” (the writer says to his Hebrew readers) “is not shrinking back, but faith. And faith is this....” It has been debated whether that which follows is a definition of what faith is, or in reality a description of what faith does. It is not a complete definition, in the sense of including all the moments of thought which are present in the word as used in the last chapter (Hebrews 11:38) or in this. The “things hoped for” are not mere figments of the imagination; their basis is the word of God. If we keep this in mind, the words, still remaining general in their form, agree with all that has led up to them and with all that follows; and whether they be called definition or description will be of little consequence.
The exact meaning of the special terms here used it is not easy to ascertain. The word rendered “substance” has already occurred twice in the Epistle. In Hebrews 1:3 this was its true meaning — the essence which, so to speak, underlies, “stands under,” the qualities possessed. In Hebrews 3:14 the same metaphor of standing under is applied to steadfastness, confidence (see the Note). The former of these renderings the Authorised version. — in this instance deserting the earlier translations (which for the most part have “sure confidence” or “ground”) to follow the Rhemish in its rendering of the Latin. substantia — has made familiar in the present passage. The sense which it presents, however, is not very clean; and the symmetry of the verse almost compels us here to make choice of some word which denotes an act, or at all events an attitude, of the mind. Most commentators of our own day accept the second meaning explained above, “confidence” or “assurance in regard to things hoped for.” To adopt Dr. Vaughan’s clear explanation, “Faith is that principle, that exercise of mind and soul, which has for its object things not seen but hoped for, and which, instead of sinking under them as too ponderous, whether from their difficulty or from their uncertainty, stands firm under them — supports and sustains their pressure — in other words, is assured of, confides in and relies on them.” This interpretation yields an excellent sense, and has the advantage of assigning to the Greek word a meaning which it certainly bears in an earlier chapter, and in two places of St. Paul’s Epistles. On the other hand, the analogy of the second member of the verse, and a peculiarity in the Greek construction which we cannot here discuss, seem to be in favour of a third rendering of the words: “Faith is the giving substance to things hoped for.” It has indeed been said that by such a translation the things hoped for are represented as being without substance. But this difficulty is only apparent; for in regard to ourselves these objects of our hope do not yet exist, since they still belong to the future (Romans 8:24-25). In the second clause the word “evidence” is likely to mislead; very probably, indeed, it now fails to convey the sense intended by our translators, who hero followed the rendering of the Genevan Bible (suggested by Calvin’s “evidentia”). The Greek word denotes putting to the test, examining for the purpose of proof, bringing to conviction. Under this aspect faith appears as neither blindly rejecting nor blindly accepting whatever may be said about things unseen, but boldly dealing with them as if with things seen, and then unflinchingly accepting that which has stood the proof. One peculiarity of the Greek yet remains to be noticed. In the second clause the word “things” is expressed in the Greek (as in Hebrews 6:18), but not in the first; we are by this means reminded of the reality of that which is thus spoken of as unseen. The whole verse, then, may be rendered “Now faith is the giving substance to what is hoped for, the testing of things not seen.” And now passing away from the general aspect of the words to that in which they are presented by the context, we have as the meaning: Faith, holding to God’s word, gives substance to what that word promises, investing the future blessings with a present existence, treating them as if already objects of sight rather than of hope. Through faith, guided by the same word, the things unseen are brought to the proof; what that word teaches, though future, or though belonging to a world beyond human sight, is received with full conviction. Thus “every genuine act of faith is the act of the whole man, not of his understanding alone, not of his affections alone, not of his will alone, but of all three in their central, aboriginal unity.” And thus faith becomes “the faculty in man through which the spiritual world exercises its sway over him, and thereby enables him to overcome the world of sin and death.” (Hare, Victory of Faith.)