4 with the ark of God, and Ahio went before the ark.

Matthew Henry's Commentary on 2 Samuel 6:4

Commentary on 2 Samuel 6:1-5

(Read 2 Samuel 6:1-5)

God is present with the souls of his people, when they want the outward tokens of his presence; but now David is settled in the throne, the honour of the ark begins to revive. Let us learn hence, to think and to speak highly of God; and to think and speak honourably of holy ordinances, which are to us as the ark was unto Israel, the tokens of God's presence, Matthew 28:20. Christ is our Ark; in and by him God manifests his favour, and accepts our prayers and praises. The ark especially typified Christ and his mediation, in which the name of Jehovah and all his glories are displayed. The priests should have carried the ark upon their shoulders. Philistines may carry the ark in a cart without suffering for it; but if Israelites do so, it is at their peril, because this was not what God appointed.