Then David said
 Either within himself, or to his ministers and courtiers about him: 
 none ought to carry the ark of God but the Levites;
 he saw his former mistake in employing those that were not Levites in bringing up the ark from Kirjathjearim, and bringing it in a cart, and not on the shoulders of the Levites, and so miscarried in his attempt, ( 2 Samuel 6:1 ) and, perhaps, had since more diligently consulted the law of God about this matter: 
 for them hath the Lord chosen to carry the ark of God, and to minister
 unto him for ever;
 as long as the Levitical dispensation lasted, as appears from ( Numbers 1:50 ) ( 4:15 ) ( 7:9 ) .