וְעָרֵ֣ל ׀ זָכָ֗ר אֲשֶׁ֤ר לֹֽא־יִמּוֹל֙ אֶת־בְּשַׂ֣ר עָרְלָת֔וֹ וְנִכְרְתָ֛ה הַנֶּ֥פֶשׁ הַהִ֖וא מֵעַמֶּ֑יהָ אֶת־בְּרִיתִ֖י הֵפַֽר׃ (ס)
할례를 받지 아니한 남자 곧 그 양피를 베지 아니한 자는 백성 중에서 끊어지리니 그가 내 언약을 배반하였음이니라
The Midrash of Philo
Why is it that he pronounces a sentence of death on an infant, saying, "Every male child who is not circumcised, who has not been circumcised (or, as the Greek has it, who shall not be circumcised) in the flesh of his foreskin on the eighth day, that soul shall be cut off from his generation?"(Genesis 17:14).