Psalms 24:3,4 - Ellicott's Commentary On The Whole Bible

For the elaboration of this answer, see Psalms 15 and Isaiah 33:15; Isaiah 33:18. “The answer is remarkable, as expressing in language so clear that a child may understand it, the great doctrine that the only service, the only character which can be thought worthy of such a habitation, is that which conforms itself to the laws of truth, honesty, humility, justice, love. Three thousand years have passed, Jerusalem has fallen, the Jewish monarchy and priesthood and ritual and religion have perished; but the words of David still remain, with hardly an exception, the rule by which all wise and good men would measure the worth and value of men, the greatness and strength of nations” (Stanley, Canterbury Sermons).