Then Moses called for all the elders of Israel, and said to them, "Draw out, and take lambs according to your families, and kill the Passover.
TSK
TSK · Ezra 6:20
Treasury of Scripture Knowledge references in WEB.
Exodus 12:21
TSK
Then they killed the Passover on the fourteenth [day] of the second month: and the priests and the Levites were ashamed, and sanctified themselves, and brought burnt offerings into the house of Yahweh.
Afterward they prepared for themselves, and for the priests, because the priests the sons of Aaron [were busied] in offering the burnt offerings and the fat until night: therefore the Levites prepared for themselves, and for the priests the sons of Aaron.
Hebrews 7:27
TSK
who doesn't need, like those high priests, to offer up sacrifices daily, first for his own sins, and then for the sins of the people. For he did this once for all, when he offered up himself.