Carl Friedrich Keil and Franz Delitzsch Old Testament Commentary

The bearers of the ark are not particularly mentioned in this account; but it is very evident that they were Levites, as the Chronicles affirm, from the fact that the ark was carried this time, and not driven, as before. "And it came to pass, when the bearers of the ark of Jehovah had gone six paces, he sacrificed an ox and a fatted calf" (i.e., had them sacrificed). These words are generally understood as meaning, that sacrifices of this kind were offered along the whole way, at the distance of six paces apart. This would certainly have been a possible thing, and there would be no necessity to assume that the procession halted every six paces, until the sacrificial ceremony was completed, but the ark might have continued in progress, whilst sacrifices were being offered at the distances mentioned. And even the immense number of sacrificial animals that would have been required is no valid objection to such an assumption. We do not know what the distance really was: all that we know is, that it was not so much as ten miles, as Kirjath-jearim was only about twelve miles from Jerusalem, so that a few thousand oxen, and the same number of fatted calves, would have been quite sufficient. But the words of the text do not distinctly affirm that sacrifices were offered whenever the bearers advanced six paces, but only that this was done was soon as the bearers had taken the first six steps. So that, strictly speaking, all that is stated is, that when the procession had started and gone six paces, the sacrifice was offered, namely, for the purpose of inaugurating or consecrating the solemn procession. In 1 Chron 15 this fact is omitted; and it is stated instead (Ch1 15:26), that "when God helped the Levites that bare the ark of the covenant of the Lord, they offered seven bullocks and seven rams," i.e., at the close of the procession, when the journey was ended, to praise God for the fact that the Levites had been enabled to carry the ark of God to the place appointed for it, without suffering the slightest harm. (Note: There is no discrepancy, therefore, between the two different accounts; but the one supplements the other in a manner perfectly in harmony with the whole affair, - at the outset, a sacrifice consisting of one ox and one fatted calf; and at the close, one of seven oxen and seven rams. Consequently there is no reason for altering the text of the verse before us, as Thenius proposes, according to the senseless rendering of the lxx, καὶ ἦσαν μετ ̓ αὐτοῦ αἴροντες τὴν κιβωτὸν ἑπτὰ χοροί, καὶ θῦμα μόσχος καὶ ἄρνες ("with David there were bearers of the ark, seven choirs, and sacrifices of a calf and lambs"), which has also found its way into the Vulgate, though Jerome has rendered our Hebrew text faithfully afterwards (i.e., after the gloss, which was probably taken from the Itala, and inserted in his translation).)