Job 1:5

1:5 When the days of their feasting were finished, Job would send for them and sanctify them; he would get up early in the morning and offer burnt offerings according to the number of them all. For Job thought, “Perhaps my children have sinned and cursed God in their hearts.” This was Job’s customary practice.

Exodus 18:12

18:12 Then Jethro, Moses’ father-in-law, brought a burnt offering and sacrifices for God, and Aaron and all the elders of Israel came to eat food with the father-in-law of Moses before God.