Lev1:2 Give these orders to the children of Israel: When anyone of you makes an offering to the Lord, you are to take it from the cattle, from the herd or from the flock.
Lev1:3 If the offering is a burned offering of the herd, let him give a male without a mark: he is to give it at the door of the Tent of meeting so that he may be pleasing to the Lord.
Num1:18 And they got together all the people on the first day of the second month; and everyone made clear his family and his father's house, by the number of the names, from twenty years old and over.