Joseph Benson's Commentary of the Old and New Testaments - Hebrews 4:9
Hebrews 4:9. There remaineth therefore a rest, &c. Since neither of the two former rests is intended by David, and there was no new rest for the people to enter into in the days of David, and the psalm wherein these words are recorded is acknowledged to be prophetical of the days of the Messiah, it unavoidably follows that there is such a rest remaining; and not only a spiritual rest, in the peace and love of God, and in the enjoyment of communion with him entered into by believing in... read more
Albert Barnes' Notes on the Whole Bible - Hebrews 4:9
There remaineth, therefore, a rest - This is the conclusion to which the apostle comes. The meaning is this, that according to the Scriptures there is “now” a promise of rest made to the people of God. It did not pertain merely to those who were called to go to the promised land, nor to those who lived in the time of David, but it is “still” true that the promise of rest pertains to “all” the people of God of every generation. The “reasoning” by which the apostle comes to this conclusion is... read more