Exodus 19:1-8 (KJV)
1. In the third month, when the children of Israel were gone forth out of the land of Egypt, the same day came they into the wilderness of Sinai.
2. For they were departed from Rephidim, and were come to the desert of Sinai, and had pitched in the wilderness; and there Israel camped before the mount.
3. And Moses went up unto God, and the Lord called unto him out of the mountain, saying, Thus shalt thou say to the house of Jacob, and tell the children of Israel;

Exodus 18:13-27 (KJV)
13. And it came to pass on the morrow, that Moses sat to judge the people: and the people stood by Moses from the morning unto the evening.
14. And when Moses’ father in law saw all that he did to the people, he said, What is this thing that thou doest to the people? why sittest thou thyself alone, and all the people stand by thee from morning unto even?
15. And Moses said unto his father in law, Because the people come unto me to enquire of God:

Exodus 18:1-12 (KJV)
1. When Jethro, the priest of Midian, Moses’ father in law, heard of all that God had done for Moses, and for Israel his people, and that the Lord had brought Israel out of Egypt;
2. Then Jethro, Moses’ father in law, took Zipporah, Moses’ wife, after he had sent her back,
3. And her two sons; of which the name of the one was Gershom; for he said, I have been an alien in a strange land: