״וַיַּעֲבוֹר ה׳ עַל פָּנָיו וַיִּקְרָא״.
אָמַר רַבִּי יוֹחָנָן:
אִלְמָלֵא מִקְרָא כָּתוּב, אִי אֶפְשָׁר לְאוֹמְרוֹ. מְלַמֵּד שֶׁנִּתְעַטֵּף הַקָּדוֹשׁ בָּרוּךְ הוּא כִּשְׁלִיחַ צִבּוּר, וְהֶרְאָה לוֹ לְמֹשֶׁה סֵדֶר תְּפִלָּה.
אָמַר לוֹ: כׇּל זְמַן שֶׁיִּשְׂרָאֵל חוֹטְאִין — יַעֲשׂוּ לְפָנַי כַּסֵּדֶר הַזֶּה וַאֲנִי מוֹחֵל לָהֶם. ״ה׳ ה׳״ — אֲנִי הוּא קוֹדֶם שֶׁיֶּחְטָא הָאָדָם, וַאֲנִי הוּא לְאַחַר שֶׁיֶּחְטָא הָאָדָם וְיַעֲשֶׂה תְּשׁוּבָה — ״אֵל רַחוּם וְחַנּוּן״.
“And the Lord passed by before him, and proclaimed” (Exodus 34:6).
Rabbi Yoḥanan said: Were it not explicitly written in the verse, it would be impossible to say this, as it would be insulting to God’s honor. The verse teaches that the Holy One, Blessed be He, wrapped Himself in a prayer shawl like a prayer leader and showed Moses the structure of the order of the prayer.
He said to him: Whenever the Jewish people sin, let them act before Me in accordance with this order. Let the prayer leader wrap himself in a prayer shawl and publicly recite the thirteen attributes of mercy, and I will forgive them.
The verse continues: “The Lord, the Lord,” and it should be understood as follows:
I am He before a person sins, and I am He after a person sins and performs repentance, as God does not recall for him his first sins, since He is always “God, merciful and gracious” (Exodus 34:6).