Numbers 28:11, 19, 26

And in the beginnings of your months ye shall offer a burnt-offering unto Jehovah: two young bullocks, and one ram, seven he-lambs a year old without blemish

but ye shall offer an offering made by fire, a burnt-offering unto Jehovah: two young bullocks, and one ram, and seven he-lambs a year old; they shall be unto you without blemish

Also in the day of the first-fruits, when ye offer a new meal-offering unto Jehovah in your feast of weeks, ye shall have a holy convocation; ye shall do no servile work