Numbers 16:17

16:17 And each of you take his censer, put incense in it, and then each of you present his censer before the Lord: 250 censers, along with you, and Aaron – each of you with his censer.”

Numbers 18:15

18:15 The firstborn of every womb which they present to the Lord, whether human or animal, will be yours. Nevertheless, the firstborn sons you must redeem, and the firstborn males of unclean animals you must redeem.

Numbers 29:39

29:39 “‘These things you must present to the Lord at your appointed times, in addition to your vows and your freewill offerings, as your burnt offerings, your grain offerings, your drink offerings, and your peace offerings.’”