1 Chronicles 15:4 - Christian Standard Bible Anglicised

Then he gathered together the descendants of Aaron and the Levites:

Tuilleadh leaganacha

King James Version (Oxford) 1769

And David assembled the children of Aaron, and the Levites:

Amplified Bible - Classic Edition

And David gathered together the sons of Aaron and the Levites:

American Standard Version (1901)

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

Common English Bible

David also gathered Aaron’s family and the Levites:

Catholic Public Domain Version

Certainly, there were both the sons of Aaron and the Levites:

Douay-Rheims version of The Bible - 1752 version

And the sons of Aaron also, and the Levites.

1 Chronicles 15:4 Tagairtí Cros

1 Chronicles 13:2

Then he said to the whole assembly of Israel, ‘If it seems good to you, and if this is from the Lord our God, let’s spread out and send the message to the rest of our relatives in all the districts of Israel, including the priests and Levites in their cities with pasturelands,  that they should gather together with us.

1 Chronicles 15:5

From the Kohathites, Uriel the leader and 120 of his relatives;

Numbers 3:4

But Nadab and Abihu died in the Lord’s presence when they presented unauthorised fire  before the Lord in the Wilderness of Sinai, and they had no sons. So Eleazar and Ithamar served as priests under the direction of Aaron their father.