For thou preventest him with the blessings of goodness; i.e. thou givest him blessings before he asks, and more than he asks.. "The blessings of goodness" is pleonastic, since a blessing cannot be otherwise than a good.
Thou settest a crown of pure gold on his head. It is remarked that David, as the result of one of his wars, did actually take the crown of the conquered king, which was a crown of gold, from off the king' s head, and place it upon his own head (2 Samuel 12:30); but this is scarcely what is intended here.
As Hengstenberg observes, "The setting on of the crown marks the bestowment of dominion," not in one petty ease only, but generally, and is scarcely to be altogether separated from the promises recorded in 2 Samuel 7:12-16.