Exodus 18:7, 12-16

So Moses went out to meet his father-in-law and bowed down and kissed him. After the two men asked about each other’s health, they went into Moses’ tent.

Then Jethro, Moses’ father-in-law, gave a whole burnt offering and other sacrifices to God. Aaron and all the elders of Israel came to Moses’ father-in-law to eat the holy meal together before God. The next day Moses solved disagreements among the people, and the people stood around him from morning until night. When Moses’ father-in-law saw all that Moses was doing for the people, he asked, “What is all this you are doing for the people? Why are you the only one to solve disagreements? All the people are standing around you from morning until night!” Then Moses said to his father-in-law, “It is because the people come to me for God’s help in solving their disagreements. When people have a disagreement, they come to me, and I decide who is right. I tell them God’s laws and teachings.”