Hebrews 3:15

While it is said, To-day— The 14th verse seems to be a parenthesis, and the 15th is thus to be joined to the 13th: Exhort one another daily, while it is called To-day, lest any of you should be hardened, &c.—"Exhort one another, I advise, by or from its being said, To-day if ye will hear, &c." Thus, as in Hebrews 3:13 he had expressed the time when this mutual exhortation should be used,—while it is called To-day; and the end of it,—lest any should be hardened, &c. so in this verse he declares the ground upon which their mutual exhortation was to be built; namely, its being said, To-day if ye will hear his voice, harden not your hearts. Thus understood, the present verse agrees with the 13th: for, as there he cautions them against being hardened, so here he sets down the words of the text, which shews the danger there was of it; by which consideration they were to excite and stir up each other. See Psalms 42:3. Ezekiel 36:20 in the LXX.