"And the serpent was" and so on, prepared for punishment. "Behold, the man was" (Genesis 3:22), prepared for death. "And Cain was" (Genesis 4:2), prepared to go into exile. "Abraham was one" (Ezekiel 33:24), prepared to lead the whole world in repentance. "And Moses was," prepared to be a redeemer. "Indeed (aph), has God said?" Four opened with aph (which also means anger) and perished through aph: the serpent, "indeed, has God said?"; the chief baker, "I too (aph) in my dream" (Genesis 40:16); the company of Korah, "moreover (aph) you have not brought us to a land flowing with milk and honey"; Haman, "moreover (aph), Esther brought no one" (Esther 5:12).
Prepared for Their End and the Four Who Opened with Aph
Yalkut Shimoni on Torah 26:1
וְהַנָּחָשׁ הָיָה וְגוֹ', מְתֻקָּן לְפֻרְעָנוּת (להלן פסוק כב). "הֵן הָאָדָם הָיָה", מְתֻקָּן לְמִיתָה (בראשית ד, ב) "וְקַיִן הָיָה", מְתֻקָּן לִגְלוֹת. (יחזקאל לג, כד) "אֶחָד הָיָה אַבְרָהָם", מְתֻקָּן לְהַדְרִיךְ אֶת כָּל הָעוֹלָם בִּתְשׁוּבָה. "וּמֹשֶׁה הָיָה", מְתֻקָּן לְגוֹאֵל. אַף כִּי אָמַר אֱלֹהִים, אַרְבַּע שֶׁפָּתְחוּ בְּאַף וְאָבְדוּ בְּאַף, הַנָּחָשׁ אַף כִּי אָמַר אֱלֹהִים, שַׂר הָאוֹפִים, (בראשית מ, טז) "אַף אֲנִי בַּחֲלוֹמִי", עֲדַת קֹרַח, "אַף לֹא אֶל אֶרֶץ זָבַת חָלָב", הָמָן, (אסתר ה, יב) "אַף לֹא הֵבִיאָה אֶסְתֵּר".