And David consulted with the captains of thousands, and of hundreds, and with all the commanders.

And David consulted with the captains of thousands and hundreds, with every prince.

And David consulteth with the heads of the thousands, and of the hundreds, every leader,

Then David had discussions with the captains of thousands and the captains of hundreds and with every chief.

Then David took counsel with the tribunes, and the centurions, and all the leaders.

The captains - Such an organisation had probably been established generally through the tribes prior to the time of David: but David seems to have been the first to recognize in these officers of the host representatives of the people, to consult them on public affairs, and to give them a certain political position.

David consulted - Having taken the strong hold of Zion from the Jebusites, organized his army, got assurances of the friendly disposition of the Israelites towards him, he judged it right to do what he could for the establishment of religion in the land; and as a first step, consulted on the propriety of bringing the ark from an obscure village, where it had remained during the reign of Saul, to the royal city or seat of government.

And David consulted with the captains of thousands, and hundreds, and with every leader. With the chiliarchs and centurions, and every officer in that large body of armed men in every tribe, who met to make and crown him king: for at that time was this consultation had, and therefore is connected with it; though the affair advised about was not yet done, as Dr. Lightfoot (h) observes, and was not done until some considerable time afterwards. Advice being taken, the several officers went with their men to their respective countries, to meet again at a certain time and place to put the thing projected into execution; and between this and that time were Hiram's message to David on his accession to the throne, the taking of Jerusalem, and the two battles with the Philistines, as the same writer notes; most of which are recorded before this in the book of Samuel, and follow here.
(h) Works, vol. 1. p. 61, 62.

David said not, What magnificent thing shall I do now? or, What pleasant thing? but, What pious thing? that he might have the comfort and benefit of that sacred oracle. Let us bring the ark to us, that it may be a blessing to us. Those who honour God, profit themselves. It is the wisdom of those setting out in the world, to take God's ark with them. Those are likely to go on in the favour of God, who begin in the fear of God.

DAVID FETCHES THE ARK FROM KIRJATH-JEARIM. (1-Chronicles 13:1-8)
David consulted . . . And let us bring again the ark of our God--Gratitude for the high and splendid dignity to which he had been elevated would naturally, at this period, impart a fresh animation and impulse to the habitually fervent piety of David; but, at the same time, he was animated by other motives. He fully understood his position as ruler under the theocracy, and, entering on his duties, he was resolved to fulfil his mission as a constitutional king of Israel. Accordingly, his first act as a sovereign related to the interests of religion. The ark being then the grand instrument and ornament of it, he takes the opportunity of the official representatives of the nation being with him, to consult them about the propriety of establishing it in a more public and accessible locality. The assembly at which he spoke of this consisted of the Sheloshim, princes of thousands (2-Samuel 6:1). During the reign of the late king, the ark had been left in culpable neglect. Consequently the people had, to a great extent, been careless about the ordinances of divine worship, or had contented themselves with offering sacrifices at Gibeon, without any thought of the ark, though it was the chief and most vital part of the tabernacle. The duty and advantages of this religious movement suggested by the king were apparent, and the proposal met with universal approval.

The removal of the ark from Kirjath-jearim. Cf. 2-Samuel 6:1-11, with the commentary on the substance of the narrative there given.