Numbers 28:18 WEB

¹⁶  In the first month, on the fourteenth day of the month, is Yahweh's Passover.

¹⁷  On the fifteenth day of this month shall be a feast: seven days shall unleavened bread be eaten.

¹⁸  In the first day shall be a holy convocation: you shall do no servile work;

¹⁹  but you shall offer an offering made by fire, a burnt offering to Yahweh: two young bulls, and one ram, and seven he-lambs a year old; they shall be to you without blemish;

²⁰  and their meal-offering, fine flour mixed with oil: three tenth parts shall you offer for a bull, and two tenth parts for the ram;