Psalms 21:1 - Joseph Benson’s Commentary on the Old and New Testaments

The king shall joy in thy strength Conferred upon him, and put forth, by thee, on his behalf, against his enemies. Though by the king here we may understand King David, who composed this Psalm, yet it may be much better explained of the King Messiah; understood of whom, the words thy strength mean the divine power, which was manifested in the resurrection of Christ, and in the establishment of his gospel.