Exodus 29:17 (WEB)
You shall cut the ram into its pieces, and wash its innards, and its legs, and put them with its pieces, and with its head.
Catechism · 1
“A special rite consecrated the beginnings of the priesthood of the Old Covenant. the priests are "appointed to act on behalf of men in relation to God, to offer gifts and sacrifices for sins."” — Catechism footnote: Heb 5:1; cf. Ex 29:1-30; Lev 8.
