'Priests and Levites' in the Bible

And they departed not from the command of the king unto the priests and Levites concerning any matter, or concerning the treasuries.

And Hezekiah appointed the divisions of the priests and the Levites according to their divisions, every man according to his service, the priests and Levites for burnt offerings and for peace offerings, to minister, and to give thanks, and to praise in the gates of the camp of the LORD.