Charles Ellicott Commentary Leviticus 23:18

"And ye shall present with the bread seven lambs without blemish a year old, and one young bullock, and two rams: they shall be a burnt-offering unto Jehovah, with their meal-offering, and their drink-offerings, even an offering made by fire, of a sweet savor unto Jehovah." — Leviticus 23:18 (ASV)

And you shall offer with the bread seven lambs. —The additional sacrifices for the feast day consisted of two young bulls, one ram, and seven lambs, which were a burnt offering, and of a goat as a sin offering (Numbers 28:26–27; Numbers 28:30). Besides these, however, the new grain offering of the two loaves mentioned in this text is to be brought, and with it are to be offered one young bull, two rams, and seven lambs, all for burnt offerings.