'Priestly' in the Bible

So they came forward and carried them, still in their undertunics, outside the camp, as Moses had said.

"The high priest among his relatives whose head has been anointed with oil and who has been consecrated to put on the priestly clothing is not to let his hair hang loose or to tear his clothes.

If a priest’s daughter is married to a layman [one not part of the priestly tribe], she shall not eat the offering of the holy things.