Berean Study Bible
Then he gathered together the descendants of Aaron and the Levites:

King James Bible
And David assembled the children of Aaron, and the Levites:

American Standard Version
And David gathered together the sons of Aaron, and the Levites:

Darby Bible Translation
And David gathered the sons of Aaron and the Levites:

Douay-Rheims Bible
And the sons of Aaron also, and the Levites.

English Revised Version
And David gathered together the sons of Aaron, and the Levites:

Young's Literal Translation
And David gathereth the sons of Aaron, and the Levites.