Numbers 28:16-22

16‘On the fourteenth day of the first month is the Passover of the Lord.

17And on the fifteenth day of this month is the feast; unleavened bread shall be eaten for seven days.

18On the first day you shall have a holy convocation. You shall do no customary work.

19And you shall present an offering made by fire as a burnt offering to the Lord: two young bulls, one ram, and seven lambs in their first year. Be sure they are without blemish.

20Their grain offering shall be of fine flour mixed with oil: three-tenths of an ephah you shall offer for a bull, and two-tenths for a ram;

21you shall offer one-tenth of an ephah for each of the seven lambs;

22also one goat as a sin offering, to make atonement for you.