3:13 But exhort one another daily, {i} while it is called To day; lest any of you be hardened through the deceitfulness of sin.
(i) While today lasts, that is to say, so long as the gospel is offered to us.
3:13 But exhort one another daily. Continually stir each other to duty, lest you be hardened against God's voice by
the deceitfulness of sin. How sin does deceive us by making false promises of happiness and of safety.
3:13 But, to prevent it, exhort one another, while it is called To - day - This to - day will not last for ever. The day of life will end soon, and perhaps the day of grace yet sooner.
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.