On the day of firstfruits, when you present an offering of new grain to the LORD during the Feast of Weeks, you are to hold a sacred assembly; you must not do any regular work.
26. Also in the day of thefirst-fruits. Moses delivers the same commandment as to another festival, viz., that on which they offered their first-fruits. Then, also, he instructs them, the continual sacrifice was to be increased by the addition of two bullocks, one ram, seven lambs, a goat for a sin-offering, together with the minha and a libation, with the object, of which I have already spoken.
Here is, I. The appointment of the pass-over sacrifices; not that which was the chief, the paschal lamb (sufficient instructions had formerly been given concerning that), but those which were to be offered upon the seven days of unleavened bread, which followed it, Num 28:17-25.
Commenting on Numbers 28:16-31
But ye shall offer the burnt offering for a sweet savour unto the Lord,.... Which was of the same kind, and was of the same number of creatures as on the first day of the month, and on the seven days of unleavened bread, Num 28:11, and the meat offering which went along with this was of the same quantity of flour to each creature...