Numbers 15:3

And will make an offering by fire unto the Lord, a burnt offering,.... The first of these respects such offerings by fire, which were not wholly burnt, but part of them were eaten by the priests, Deuteronomy 18:1; and the latter such as were wholly burnt, unless the latter can be thought to be only an explanation of the former:

or a sacrifice in performing a vow, or in a freewill offering; these were peace offerings, some of which were for thanksgiving, and others were either a vow or a freewill offering, as here: see Leviticus 7:11;

or in your solemn feasts; as the passover, pentecost, c. of which, and the offerings in them, see Leviticus 23:4

to make a sweet savour unto the Lord; for acceptance with him:

of the herd or of the flock; a bullock of the one, a lamb or kid of the goats of the other; fowls are not mentioned, because burnt offerings of them required no drink offerings f.

f Maimon. Maaseh Hakorbanot, c. 2. sect. 2.