Hebrews 4:7

Again--Anew the promise recurs. Translate as the Greek order is, "He limited a certain day, 'To-day.'" Here Paul interrupts the quotation by, "In (the Psalm of) David saying after so long a time (after five hundred years' possession of Canaan)," and resumes it by, "as it has been said before (so the Greek oldest manuscript, before, namely, Heb 3:7, Heb 3:15), To-day if ye hear His voice," &c. [ALFORD].

The apostle, having in the foregoing chapter set forth the sin and punishment of the ancient Jews, proceeds in this, I. To declare that our privileges by Christ under the gospel exceed the privileges of the Jewish church under Moses, as a reason why we should make a right improvement of them (Heb 4:1-4). II. He assigns the cause why the ancient Hebrews did not profit by their religious privileges (Heb 4:2). Then, II. Confirms the privileges of those who believe, and the misery of those who continue in unbelief (Heb 4:3-10). IV. Concludes with proper and powerful arguments and motives to faith and obedience.

4:7 So God set another time . . . and that time is today: The logic here is that David wrote Ps 95 much later than the wilderness debacle, so God’s rest cannot be limited to that earlier generation. The words already quoted are from Ps 95:7-8; these words encourage us not to harden our hearts when hearing God’s voice so that we might enter the rest that the people in the wilderness were denied. This opportunity is available today (see Heb 3:13).