For the Lord our God burst out [in anger] against us because you Levites were not [with] us the first time, for we didn't inquire of Him about the proper procedures."
1 Chronicles 15:13 In-Context
Then David summoned Zadok and Abiathar the priests, and Uriel, Asaiah, Joel, Shemaiah, Eliel and Amminadab the Levites.
He said to them, “You are the heads of the Levitical families; you and your fellow Levites are to consecrate yourselves and bring up the ark of the LORD, the God of Israel, to the place I have prepared for it.
It was because you, the Levites, did not bring it up the first time that the LORD our God broke out in anger against us. We did not inquire of him about how to do it in the prescribed way.”
So the priests and Levites consecrated themselves in order to bring up the ark of the LORD, the God of Israel.
And the Levites carried the ark of God with the poles on their shoulders, as Moses had commanded in accordance with the word of the LORD.