Psalms 21:4 - Exposition

He asked life of thee, and thou gavest it him, even length of days for ever and ever. The "life" intended cannot be ordinary human life, since in David' s case this certainly did not continue "for ever and ever." We must understand the psalmist to have asked for continuance in his posterity , and this was guaranteed him in the message which God sent him by Nathan ( 2 Samuel 7:13 , 2 Samuel 7:16 ). In the full sense the promise was, of course, Messianic, being fulfilled only in Christ, the God-Man, who alone of David' s posterity "liveth for ever."