R. Joshua argued that besides accepting Jewish beliefs and laws, a prospective convert to Judaism must undergo immersion in a mikveh. In contrast, R. Eliezer makes circumcision a condition for the conversion. A similar controversy between the Shammaites and the Hillelites is given regarding a proselyte born without a foreskin: the former demanding the spilling of a drop of blood symbolic of the Brit Milah, thereby entering into the covenant; the latter declaring it to be unnecessary.[24]