'Passover lambs' in the Bible
for there were many in the assembly who had not consecrated themselves, and so the Levites were in charge of slaughtering the Passover lambs for every unclean person to consecrate the lambs to the Lord.
Josiah observed the Lord’s Passover and slaughtered the Passover lambs on the fourteenth day of the first month.
Slaughter the Passover lambs, consecrate yourselves, and make preparations for your brothers to carry out the word of the Lord through Moses.”
Then they slaughtered the Passover lambs, and while the Levites were skinning the animals, the priests sprinkled the blood they had been given.
They roasted the Passover lambs with fire according to regulation. They boiled the holy sacrifices in pots, kettles, and bowls; and they quickly brought them to the lay people.