Why the mitzvot's details matter so much
Rav teaches that the mitzvot (commandments) were given not because G-d has a personal stake in their details—such as how an animal is ritually slaughtered—but in order to refine (letzaref) and purify those who perform them. The midrash then applies this idea of refinement to Abraham himself, reading Psalms 18:31 as describing how G-d's perfect, refined word tested and purified Abraham, notably through the fiery furnace, and in turn serves as his shield. The verse "fear not, Abram, I am a shield for you" thus confirms that the very G-d who refines through mitzvot also protects the one who has been so refined.AI summary · anthropic/claude-sonnet-5
“After these matters, the word of the Lord came to Abram in a vision, saying: Fear not, Abram, I am a shield for you; your reward is very great” (Genesis 15:1). “After these matters, the word of the Lord came to Abram in a vision, saying…” “The Almighty’s way is faultless; the word of the Lord is refined [tzerufa]. He is a shield for all who take refuge in Him” (Psalms 18:31) – if His ways are faultless, all the more so that He Himself is.
Rav said: The mitzvot were given only to refine [letzaref] people through them. After all, why should the Holy One blessed be He care whether one slaughters an animal from the throat or he slaughters it from the nape? Thus we learn that the mitzvot were given only to refine the creations with them.
Another interpretation, “the Almighty’s way is faultless” – this refers to Abraham, as it is stated: “You found his heart faithful before You” (Nehemiah 9:8). “The word of the Lord is refined” – as the Holy One blessed be He refined him in the fiery furnace. “He is a shield for all who take refuge in Him” – “fear not, Abram, I am a shield for you.”
אַחַר הַדְּבָרִים הָאֵלֶּה הָיָה דְבַר ה' אֶל אַבְרָם בַּמַּחֲזֶה לֵאמֹר וגו' (בראשית טו, א), (תהלים יח, לא): הָאֵל תָּמִים דַּרְכּוֹ אִמְרַת ה' צְרוּפָה מָגֵן הוּא לְכֹל הַחוֹסִים בּוֹ, אִם דְּרָכָיו תְּמִימִים, הוּא עַל אַחַת כַּמָּה וְכַמָּה, רַב אָמַר לֹא נִתְּנוּ הַמִּצְווֹת אֶלָּא לְצָרֵף בָּהֶן אֶת הַבְּרִיּוֹת, וְכִי מָה אִיכְפַּת לֵיהּ לְהַקָּדוֹשׁ בָּרוּךְ הוּא לְמִי שֶׁשּׁוֹחֵט מִן הַצַּוָּאר אוֹ מִי שֶׁשּׁוֹחֵט מִן הָעֹרֶף, הֱוֵי לֹא נִתְּנוּ הַמִּצְווֹת אֶלָּא לְצָרֵף בָּהֶם אֶת הַבְּרִיּוֹת. דָּבָר אַחֵר, הָאֵל תָּמִים דַּרְכּוֹ, זֶה אַבְרָהָם, שֶׁנֶּאֱמַר (נחמיה ט, ח): וּמָצָאתָ אֶת לְבָבוֹ נֶאֱמָן לְפָנֶיךָ. אִמְרַת ה' צְרוּפָה, שֶׁצֵּרְפוֹ הַקָּדוֹשׁ בָּרוּךְ הוּא בְּכִבְשַׁן הָאֵשׁ. מָגֵן הוּא לְכֹל הַחוֹסִים בּוֹ, (בראשית טו, א): אַל תִּירָא אַבְרָם אָנֹכִי מָגֵן לָךְ.