'Priests' in the Bible

"Thus says Yahweh of hosts: 'Ask now the priests [for] a ruling:

If a man carries consecrated meat in the hem of his garment, and his hem touches bread, or stew, or wine, or olive oil, or any kind of food, will it become holy?'" The priests answered, "No."

Then Haggai said, "If one who is unclean from contact with a corpse touches any of these, will it become unclean?" The priests answered, "Yes, it will be become unclean."