It is clear that Abraham understood the Torah, and that he waited to enact his bris until commanded, but who performed it? Did he do it himself, or was someone else instructed to do it, to serve in ...
Optimally, a father should circumcise his own sons. Optimally, an aliyah should read the Torah when called up. When we are called up for an aliyah, we say the brocha and the baal koreh reads for us. ...