'Priests' in the Bible

Thus saith Jehovah of hosts: Ask now the priests concerning the law, saying,

If one bear holy flesh in the skirt of his garment, and with his skirt do touch bread, or pottage, or wine, or oil, or any food shall it become holy? And the priests answered and said, No.

And Haggai said, If one that is unclean by a dead body touch any of these, is it become unclean? And the priests answered and said, It shall be unclean.