Chapter 03. Raguel, Moses' father-in-law, visits him at Mount Sinai (Book 3. The Exodus; the desert wanderings; the institutions of food-laws, priesthood, festivals.) (Antiquities of the Jews) (Flavius Josephus)

Now when Raguel, Moses's father-in-law, understood in what a prosperous condition his affairs were, he willingly came to meet him. And Moses and his children and pleased himself with his coming. And when he had offered sacrifice, he made a feast for the people, near the Bush he had formerly seen; which people, every one according to their families, partook of the feast. But Aaron and his family took Raguel and sang hymns to God, as to Him who had been the author of their deliverance and their freedom. They also praised their leader, as him through whom all things had succeeded with them. Raguel also, in his oration of thanks to Moses, made great encomiums upon the whole people; and he could not but admire Moses for his fortitude and that humanity he had shown in the delivery of his friends.