Bereshit A
Angels Birth Cain Eve Samael

465. Rabbi Chiya said that the descendants of Cain were the sons of Elohim, because when Samael injected his filth into Eve, she conceived and gave birth to Cain. Consequently, his appearance was not similar to that of the rest of humanity FOR HE WAS CONCEIVED THROUGH AN ANGEL. All those who descended from Cain were called the sons of Elohim, BECAUSE THEIR APPEARANCE WAS THAT OF ANGELS CALLED 'ELOHIM.'

465. ר' חִיָּיא אֲמַר, בְּנוֹי דְקַיִן, הֲווֹ בְּנֵי אֱלֹהִים, דְּהָא כַּד אֲתָא סמא"ל עַל חַוָּה, אַטִיל בָּהּ זוּהֲמָא וְאִתְעַבְּרַת, וְאוֹלִידַת לְקַיִן, וְחֵיזוּ דִילֵיהּ, לָא הֲוַת דָּמֵי לִשְׁאָר בְּנֵי נְשָׁא, וְכָל אִינוּן דְּאַתְיָין מִסִּטְרָא דִילֵיהּ, לָא הֲווֹ אִקְרוּן אֶלָּא בְּנֵי הָאֱלֹהִים.