'Sacrifice' in the Bible

After [this, they presented] the daily sacrifice of burnt offerings, [the offerings] for the New Moon Festival, and for all of the appointed times consecrated for Yahweh and for all who gave a freewill offering to Yahweh.

For the priests and Levites together had consecrated themselves; all of them were clean. And they slaughtered the Passover sacrifice for all of the returned exiles, for their brothers the priests, and for themselves.