Appointing a mohel and humility[1]
זאת בריתי אשר תשמרו ביני וביניכם ובין זרעך אחריך המול לכם כל-זכר
This is my covenant that you are to observe between Me and you and your offspring that follow you: circumcise all boys[2]
The Torah places a mitzvah on the father to give his son a bris milah[3]. However, very often is the case that the father doesn’t know how, and he appoints a mohel to do the mitzvah for him. Seemingly, the mohel is acting as the father’s shliach, his agent. Some even explicitly appoint the mohel as their shliach[4]. However, this isn’t so simple. Some are of the opinion[5] that a person who can perform milah themself isn’t allowed to appoint another to do it for them. Seemingly, they hold that shlichus, agency, doesn’t work for the mitzvah of milah[6]. Where do they know this from?