출애굽기 18:7 미드라쉬: Mekhilta DeRabbi Yishmael, Midrash Tanchuma Buber, Midrash Tanchuma & Shemot Rabbah

(Exodus 18:7) "And Moses went out to his father-in-law": They said: There went out (also) Aaron, Nadav, and Avihu and seventy of the elders of Israel, followed by all of Israel. Other say: Even the Shechinah went out with them.

"and Aaron and all the elders of Israel came to eat bread with Moses' father-in-law before G–d": And where did Moses go? Did he not go out to him in the beginning? viz. (Ibid. 3) "and Moses went out to his father-in-law." We are hereby apprised that he stood and waited upon them. Whence did he learn (to do this)? From our father Abraham.

(Exod. 18:5–6:) NOW JETHRO, MOSES' FATHER-IN-LAW CAME…. AND HE SAID UNTO MOSES: I AM YOUR FATHER-IN-LAW…. Who said to Moses: I AM YOUR FATHER-IN-LAW? He was unable to come to Moses. What did he do? He wrote a letter and tied it on an arrow. Then he shot, and the arrow came to Moses. Moses read it and went out to him, as stated (in vs. 7): SO MOSES WENT OUT TO MEET JETHRO. He entered the camp along with him. What is written (in vs. 12)? AND AARON CAME WITH ALL THE ELDERS OF ISRAEL TO EAT BREAD <BEFORE THE LORD WITH MOSES' FATHER-IN-LAW >. When they had eaten with him, he said: Give me permission to go to my <own> place. Moses said to him (in Numb. 10:32): IT SHALL BE THAT, IF YOU COME WITH US, IT SHALL COME TO PASS THAT WHATEVER GOOD THE LORD DOES FOR US WE WILL DO FOR YOU. <Jethro> said to him: I want to go and utter the Holy One's praise in my own place. Immediately (in Exod. 18:27): MOSES SENT HIS FATHER-IN-LAW AWAY…. Now when the Holy One does miracles for Israel, they praise him [and the nations of the world praise him]. Thus it is stated (in Ps. 138:4): {THESE PEOPLES} ALL THE KINGS OF THE EARTH SHALL GIVE THANKS TO YOU, [O LORD,] FOR THEY HAVE HEARD THE WORDS OF YOUR MOUTH.