'Priests' in the Bible

"Thus says Yahweh of Armies: Ask now the priests concerning the law, saying,

If someone carries holy meat in the fold of his garment, and with his fold touches bread, stew, wine, oil, or any food, will it become holy?'" The priests answered, "No."

Then Haggai said, "If one who is unclean by reason of a dead body touch any of these, will it be unclean?" The priests answered, "It will be unclean."