'Priestly' in the Bible

David was clothed with a robe of fine linen, as were all the Levites who carried the ark, and the singers and Chenaniah, director of the music of the singers. David also wore an ephod (a priestly upper garment) of linen.

The scribe Shemaiah son of Nethanel, a Levite, wrote down their names before the king, the officials, Zadok the priest, Ahimelech son of Abiathar, and the leaders of the priestly and Levite families. One family was drawn by lot from Eleazar, and then the next from Ithamar.