תֶּן־חֵ֥לֶק לְשִׁבְעָ֖ה וְגַ֣ם לִשְׁמוֹנָ֑ה כִּ֚י לֹ֣א תֵדַ֔ע מַה־יִּהְיֶ֥ה רָעָ֖ה עַל־הָאָֽרֶץ׃
일곱에게나 여덟에게 나눠줄지어다 무슨 재앙이 땅에 임할는지 네가 알지 못함이니라
Vayikra Rabbah
“On the eighth day, the flesh of his foreskin shall be circumcised” (Leviticus 12:3)
Another matter, “when a woman conceives” – that is what is written: “Distribute a portion to seven, and to eight as well” (Ecclesiastes 11:2). “Distribute a portion to seven,” these are the seven days of menstruation. “And to eight as well,” these are the eight days of circumcision. The Holy One blessed be He said: ‘If you observed the days of menstruation, I will grant you a son and you will circumcise him at eight days.’ That is, “on the eight day the flesh of his foreskin shall be circumcised.”
Another matter, “when a woman conceives” – that is what is written: “Distribute a portion to seven, and to eight as well” (Ecclesiastes 11:2). “Distribute a portion to seven,” these are the seven days of menstruation. “And to eight as well,” these are the eight days of circumcision. The Holy One blessed be He said: ‘If you observed the days of menstruation, I will grant you a son and you will circumcise him at eight days.’ That is, “on the eight day the flesh of his foreskin shall be circumcised.”