3:7-13 Days of temptation are often days of provocation. But to provoke God, when he is letting us see that we entirely depend and live upon him, is a provocation indeed. The hardening of the heart is the spring of all other sins. The sins of others, especially of our relations, should be warnings to us. All sin, especially sin committed by God's professing, privileged people, not only provokes God, but it grieves him. God is loth to destroy any in, or for their sin; he waits long to be gracious to them. But sin, long persisted in, will make God's wrath discover itself in destroying the impenitent; there is no resting under the wrath of God. Take heed: all who would get safe to heaven must look about them; if once we allow ourselves to distrust God, we may soon desert him. Let those that think they stand, take heed lest they fall. Since to-morrow is not ours, we must make the best improvement of this day. And there are none, even the strongest of the flock, who do not need help of other Christians. Neither are there any so low and despised, but the care of their standing in the faith, and of their safety, belongs to all. Sin has so many ways and colours, that we need more eyes than ours own. Sin appears fair, but is vile; it appears pleasant, but is destructive; it promises much, but performs nothing. The deceitfulness of sin hardens the soul; one sin allowed makes way for another; and every act of sin confirms the habit. Let every one beware of sin.

12. Take heed—to be joined with "wherefore," Heb 3:7.

lest there be—Greek (indicative), "lest there shall be"; lest there be, as I fear there is; implying that it is not merely a possible contingency, but that there is ground for thinking it will be so.

in any—"in any one of you." Not merely ought all in general be on their guard, but they ought to be so concerned for the safety of each one member, as not to suffer any one to perish through their negligence [Calvin].

heart—The heart is not to be trusted. Compare Heb 3:10, "They do always err in their heart."

unbelief—faithlessness. Christ is faithful; therefore, saith Paul to the Hebrews, we ought not to be faithless as our fathers were under Moses.

departing—apostatizing. The opposite of "come unto" Him (Heb 4:16). God punishes such apostates in kind. He departs from them—the worst of woes.

the living God—real: the distinctive characteristic of the God of Israel, not like the lifeless gods of the heathen; therefore One whose threats are awful realities. To apostatize from Christ is to apostatize from the living God (Heb 2:3).