None ought to carry the ark - but the Levites - It was their business; and he should have thought of this sooner, and then the unfortunate breach on Uzza would have been prevented; see 1 Chronicles 15:13.
None ought to carry the ark of God but the Levites - Compare marginal references. We can easily understand that David, after the “breach upon Uzza” 1 Chronicles 13:11, had carefully considered all the legal requirements with respect to moving the ark, and was anxious that they should be strictly observed (compare 1 Chronicles 15:13).