1 Chronicles 15:12 in the World English Bible
and said to them, “You are the heads of the fathers’ households of the Levites. Sanctify yourselves, both you and your brothers, that you may bring the ark of the LORD, the God of Israel, up to the place that I have prepared for it.
Context
11 And David called for Zadok and Abiathar the priests, and for the Levites, for Uriel, Asaiah, and Joel, Shemaiah, and Eliel, and Amminadab,
12 And said unto them, Ye are the chief of the fathers of the Levites: sanctify yourselves, both ye and your brethren, that ye may bring up the ark of the LORD God of Israel unto the place that I have prepared for it.
13 For because ye did it not at the first, the LORD our God made a breach upon us, for that we sought him not after the due order.