Midrasch zu Wajikra 8:24

22) (Vayikra 8:24): "And he brought forward Aaron's sons, and Moses put of the blood upon the tnuch of their right ear": This is the middle wall. "and upon the thumb of their right hand": This is the middle joint.

(Lev. 24:10:) NOW THERE WENT OUT THE SON OF AN ISRAELITE WOMAN, < WHOSE FATHER WAS EGYPTIAN >. From where did he go out? R. Hiyya bar Abba said: he went out (i.e., became excluded from Israel) because of (literally: from) the parashah on genealogies.¹²¹Tanh., Lev. 8:24; Lev. R. 32:3; Sifra to Lev. 14:10 (242: Emor, parashah 14). When he came to pitch his tent in the camp of Dan, they rejected him. Now they said to him: You have an Egyptian father, but it is written (in Numb. 2:2): < THE CHILDREN OF ISRAEL SHALL CAMP, > EACH WITH HIS STANDARD, UNDER THE BANNERS OF THEIR FATHERS' HOUSES, and not of their mothers' houses. [Immediately,] (according to Lev. 24:11) he began to utter the Name and curse it. R. Levi said: He was a bastard. How so? Taskmasters were from Egypt, and the officers were from Israel.¹²²Exod. R. 1:28; Lev. R. 32:4. The taskmaster was in charge of ten officers, and the officer < was in charge > of ten Israelites. < Thus, > it turned out that the taskmaster was in charge of a hundred {and ten} Israelites. On one occasion a taskmaster met an officer. He said to him: Go gather your groups of ten. When he had gone, he entered his house and seduced Shelomith, the officer's wife. < When > her husband returned, he found him leaving his house. When < the taskmaster > knew that < her husband > noticed him, he beat him every day. The Holy Spirit was kindled in Moses. He raised his eyes to the sky. He said: Was it not enough for this wicked man to rape his wife, but that he should return and beat him? Immediately (according to Exod. 2:12) HE SMOTE THE EGYPTIAN AND HID HIM IN THE SAND. The Holy One said: In this world you are delivered through sins into the hands of the nations of the world. However, in the world to come (according to Is. 49:23): KINGS SHALL BE YOUR GUARDIANS; THEIR LADIES, YOUR WET NURSES; [THEY SHALL BOW DOWN BEFORE YOU, NOSE TO THE GROUND, AND LICK THE DUST OF YOUR FEET. THEN YOU SHALL KNOW THAT I AM THE LORD. THOSE WHO TRUST ME SHALL NOT BE ASHAMED.]