From Bruce Waltke's Genesis: A Commentary (pp. 53-54)
“These songs [Ps. 2, 72, 45:7] celebrating the king are like royal robes with which Israel drapes each successive son of David at his coronation, but none has shoulders broad enough to wear them….The Psalter’s giant robes hang loosely on David’s dwarfish successors, though some, like Hezekiah and Josiah, have broader shoulders than others. After Jehoikim, the psalmists hope for an ideal king slips off the stooped shoulders of David’s successors, leaving Israel with a wardrobe of magnificent purple robes waiting for an Anointed One from David’s house worthy to wear them….
“In the fullness of time God sent his Son incarnate in Jesus of Nazarth. Here was a son of David with shoulders broad enough to wear the Psalter’s magnificent robes.”
