Chronicles I 15:12

12 and said to them, Ye the heads of the families of the Levites: sanctify yourselves, you and your brethren, and ye shall carry up the ark of the God of Israel, which I have prepared for it.

Chronicles I 15:12 Meaning and Commentary

1 Chronicles 15:12

And he said unto them, ye are the chief of the fathers of the
Levites
Of the families of the Levites, heads of their fathers' houses:

sanctify yourselves, both ye and your brethren;
respectively under each, whose numbers are before given, by washing their bodies and clothes, and abstaining from their wives:

that you may bring up the ark of the Lord God of Israel unto the
place that I have prepared for it;
( 2 Samuel 6:17 ) .

Chronicles I 15:12 In-Context

10 Of the sons of Oziel; Aminadab the chief, and his brethren a hundred and twelve.
11 And David called Sadoc and Abiathar the priests, and the Levites, Uriel, Asaia, and Joel, and Semaia, and Eliel, and Aminadab,
12 and said to them, Ye the heads of the families of the Levites: sanctify yourselves, you and your brethren, and ye shall carry up the ark of the God of Israel, which I have prepared for it.
13 For because ye were not at the first, our God made a breach upon us, because we sought him not according to the ordinance.
14 So the priests and the Levites sanctified themselves, to bring up the ark of the God of Israel.

The Brenton translation of the Septuagint is in the public domain.