Midrash su Esodo 19:10

(Lev. 19:2:) “You shall be holy, for I am holy.” The Holy One, blessed be He, said to Israel, “Before I created My world, the ministering angels praised My name through you and sanctified Me through you by saying (in I Chron. 16:36), ‘Blessed is the Lord God of Israel from everlasting to everlasting.’” When the first Adam was created, the angels said, “Master of the world, is this the one in whose name we are praising You?” He told them, “No. This person is a thief, since it is stated (of him in Gen. 3:17), ‘and you ate of the tree.’” [When] Noah came, they said to Him (i.e., to the Holy One, blessed be He), “Is this the one?” He told them, “[No]. This person is a drunkard, since it is stated (of him in Gen. 9:21), ‘Then he drank of the wine [and became drunk].’” [When] Abraham came, they said to Him, “Is this the one?” He told them, “This is a stranger (ger), from which Yishmael came out.” [When] Isaac came, they said to Him, “Is this the one?” He told them, “This one loves My enemy, as stated (in Gen. 25:28), ‘Now Isaac loved Esau.’” When Jacob came, they said to Him, “Is this the one?” He told them, “Yes, for so it says (in Gen. 35:10), ‘God said to him, “Your name shall no longer be Jacob, but your name shall be Israel.”’ So all Israel was called by his name.” At that time the Holy One, blessed be he, sanctified them because of His name, as stated (in Is. 49:3), “Israel, in whom I will be glorified.” The Holy One, blessed be He, said to him, “Since you were sanctified for My name before I created My world, be holy as I am holy.” It is so stated (in Lev. 19:2), “[You shall be holy,] because I am holy.” To what is the matter comparable? To a king who betrothed a wife. He said to her, “Because you have been betrothed (literally, sanctified) to my name, I am a king and you, a queen. Just as it (i.e., my name) is an honor for me, so it is an honor for you. Why? Because you are my wife.” Thus the Holy One, blessed be He, said to Moses, “Go and sanctify (i.e., go and betroth) Israel,” as stated (in Exod. 19:10), “and sanctify (rt.: qdsh) them today and tomorrow.” The Holy One, blessed be He, sanctified them and said to them (in Exod. 19:6), “But you shall be for Me a kingdom of priests, a holy (rt.: qdsh) nation.” Why? (Lev. 19:2:) “Because I the Lord am holy.” And you also shall be sanctified (rt.: qdsh) just as you have sanctified Me, as stated (in Lev. 19:2) “Speak unto the whole congregation of the Children of Israel, and say unto them, ‘You shall be holy (rt.: qdsh).’” The Holy One, blessed be He, said unto them, “If you are worthy, you shall be called a congregation of holy ones (rt.: qdsh); [but if] you are unworthy, you shall be called an evil congregation, as stated (Numb. 14:27) ‘How long shall this evil congregation?’”

Another interpretation (of Lev. 19:2:) YOU SHALL BE HOLY. The Holy One said to Israel: Before I created my world, the ministering angels praised my name through you and sanctified me through you by saying (in I Chron. 16:36): BLESSED IS THE LORD GOD OF ISRAEL FROM EVERLASTING TO EVERLASTING.⁸Tanh., Lev. 7:2. When the first Adam was created, the angels said: Sovereign of the World, is this the one in whose name we are praising you? He told them, [No]. This person is a thief, since it is stated (of him in Gen. 3:17): < BECAUSE YOU OBEYED YOUR WIFE AND > ATE OF THE TREE ABOUT WHICH I COMMANDED YOU, < SAYING: DO NOT EAT OF IT. CURSED IS THE LAND BECAUSE OF YOU >. < When > Noah came, they said to him (i.e., to the Holy One): Is this the one? He told them, [No]. This person is a drunkard, since it is stated (of him in Gen. 9:21): THEN HE DRANK OF THE WINE AND BECAME DRUNK…. < When > Abraham came, they said to him: Is this the one? He told them: This is a stranger (ger). < When > Isaac came, they said to him: Is this the one? He told them: This one loves my enemy, as stated (in Gen. 25:28): NOW ISAAC LOVED ESAU. When Jacob came, they said to him: Is this the one? He told them, Yes, for so it says (in Gen. 35:10): GOD SAID TO HIM: YOUR NAME SHALL NO LONGER BE JACOB, BUT YOUR NAME SHALL BE ISRAEL…. So all Israel was called by his name. At that time the Holy One, Blessed be He, sanctified them because of his name, as stated (in Is. 49:3): ISRAEL, IN WHOM I WILL BE GLORIFIED. The Holy One said to him: Since you were sanctified for my name before I created my world, Be holy as I am holy. It is so stated (in Lev. 19:2:) YOU SHALL BE HOLY, BECAUSE I, THE LORD YOUR GOD, AM HOLY. To what is the matter comparable? To a king who betrothed a wife. He said to her because you have been betrothed (literally: sanctified) to my name, I am a king and you, a queen. Just as it (i.e., my name) is an honor for me, so it is an honor for you. Why? Because you are my wife. Thus the Holy One said to Moses. Go and sanctify (i.e., go and betroth) Israel, as stated (in Exod. 19:10): GO UNTO THE PEOPLE AND SANCTIFY (rt.: QDSh) THEM TODAY AND TOMORROW. {The Holy One sanctified them} [He sanctified them. The Holy One came] and said to them (in Exod. 19:6): BUT YOU SHALL BE FOR ME A KINGDOM OF PRIESTS, A HOLY (rt.: QDSh) NATION. Why? (Lev. 19:2:) BECAUSE… I AM HOLY. And you also shall be sanctified (rt.: QDSh) just as you have sanctified me, as stated (in Lev. 19:2) SPEAK UNTO THE WHOLE CONGREGATION OF THE CHILDREN OF ISRAEL, AND SAY UNTO THEM: YOU SHALL BE HOLY (rt.: QDSh)…. The Holy One said unto them: If you are worthy, you shall be called a congregation of saints (rt.: QDSh); < if > you are unworthy, you shall be called an evil congregation. (Numb. 14:27:) HOW LONG SHALL THIS EVIL CONGREGATION…?

"Thereupon the LORD said to me, 'Carve out etc.'" (Deut. 10:1). A halachic question: When a Jewish man betrothes a woman, who must provide the payment for the scribing of the marriage document? Our Sages taught as follows: Betrothal and marriage documents are written only with the assent of both parties, and the groom provides the payment. From whom do we learn this? From the Holy One Blessed be He, when He betrothed Israel on Sinai, as it is written (Ex. 19:10), "Adonai said to Moses, “Go to the people and warn them to stay pure today and tomorrow." And who wrote this document? Moshe. Whence? As it says (Deut. 31:9), "Moses wrote down this (Song) Teaching." And what payment did the Holy One Blessed be He provide for him? The splendor of his face, as it is written (Ex. 34:29), "Moses was not aware that the skin of his face was radiant" -- when? "when He spoke with him." Resh Lakish said, "At the time he wrote the Torah, Moshe acquired the splendor of his face." How? Resh Lakish said,"The Torah was given to Moshe, its skin of white fire and written with black fire, and sealed in fire, and wrapped with fire. And while he was writing, he wiped his pen-reed on his hair, and from there he acquired the splendor of his face." R' Shmuel bar Nahman said, "It was from the tablets that Moshe acquired the splendor of his face. While the tablets were being given to him from hand to hand, Moshe acquired the splendor of his face. As soon as Israel did That Deed, he took them and broke them. The Holy One Blessed be He said to him, 'When you made the arrangement with Israel, I gave you your payment, the splendor of your face. and now you have broken the tablets.'" R' Yitzhak said, "Our Sages learned, 'If the barrel breaks, it breaks [to the account of] the middleman.' The Holy One Blessed by He said to him, 'You were the middleman between Me and My children. You broke; you replace. Whence? Because so it is written (Ex. 34:1-3): "The LORD said to Moses: 'Carve two tablets of stone like the first, and I will inscribe upon the tablets the words that were on the first tablets, which you shattered. Be ready by morning, and in the morning come up to Mount Sinai and present yourself there to Me, on the top of the mountain. No one else shall come up with you, and no one else shall be seen anywhere on the mountain; neither shall the flocks and the herds graze at the foot of this mountain.”