Numbers 28:26

The day of the firstfruits. This is an unusual phrase. It is also called “the feast of harvest, the firstfruits of thy labours” (Ex. 23:16), and “the feast of weeks” at the time of bringing in the first fruits of the wheat harvest (Ex. 34:22; Deut. 16:10; see also Lev. 23:15-21).

A new meat offering. Compare Lev. 23:16. The principal feature on this day was the new meal or cereal offering. It consisted of two loaves called the “firstfruits unto the Lord” (Lev. 23:17). These loaves were made of the first-ripe wheat. With these two loaves were offered seven male lambs, one young bullock, two rams, two he-lambs for a peace offering, and one male goat for a sin offering (Lev. 23:18).

After your weeks. That is, the seven weeks numbered from the first day of unleavened bread (Lev. 23:15-21).