Then Jethro, Moses' father-in-law, took a burnt offering and other sacrifices to offer to God. And Aaron came with all the elders of Israel to eat bread with Moses' father- in-law before God.
Exodus 18:12
Surrounding context
18:11 Now I know that the LORD is greater than all the gods; for in the very thing in which they behaved proudly, He was above them."
18:12 Then Jethro, Moses' father-in-law, took a burnt offering and other sacrifices to offer to God. And Aaron came with all the elders of Israel to eat bread with Moses' father- in-law before God.
18:13 And so it was, on the next day, that Moses sat to judge the people; and the people stood before Moses from morning until evening.