Exodus 18:12

12And Jethro, Mosesfather-in-law, brought a burnt offering and sacrifices to God; and Aaron came with all the elders of Israel to eat bread with Mosesfather-in-law abefore God.

Leviticus 17:5

5This is to the end that the people of Israel may bring their sacrifices that they sacrifice bin the open field, that they may bring them to the Lord, to the priest at the entrance of the tent of meeting, and sacrifice them cas sacrifices of peace offerings to the Lord.
Copyright information for ESV