Musar על בראשית 17:10

This portion contains the positive commandment that males should be circumcised. The Torah says: זאת בריתי אשר תשמור ביני וביניכם ובין זרעך אחריך המול ימול כל זכר. This commandment is repeated in Parshat Tazria where the Torah says: ביום השמיני ימול בשר ערלתו. There are many commandments which are recorded twice in the Torah. There is always a compelling reason for this, as our sages have demonstrated.