An altar of earth thou shalt make unto me and thereon offer thy burnt offerings and thy peace offerings, and thy sheep and thine oxen. And in all places where I shall put the remembrance of my name, thither I will come unto thee and bless thee.

and sent young men of the children of Israel to sacrifice burnt offerings and to offer peace offerings of oxen unto the LORD.

And it shall be Aaron's and his sons' duty forever, of the children of Israel, for it is a heave offering. And the heave offering shall be the LORD's duty of the children of Israel: even of the sacrifice of their peace offerings which they heave unto the LORD.