Numbers 28:11, 19, 26

‘At the beginnings of your months you shall present a burnt offering to the LORD: two young bulls, one ram, and seven lambs in their first year, without blemish

And 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.

‘Also on the day of the firstfruits, when you bring a new grain offering to the LORD at your Feast of Weeks, you shall have a holy convocation. You shall do no customary work.