The author of this psalm was David, as is affirmed, Heb. iv, 7. It has a special reference to the days of the Messiah; as it is understood by the apostle, Heb. iii, 7, &c. and Heb. iv, 3-9. Herein we are called upon, to praise God, as a great and gracious God, ver. 1-7. To hear God's voice, and not harden our hearts, lest we fall as the Israelites did, ver. 8-11.