Assuming the view that Avraham was not a Jew (see here and here1), "ha-nefesh asher asu beCharan" (Gen. 12:5) that Rashi explains were converts, what did they convert to? To give credit where credit ...
In Bereishis 12:5 we see that Avraham took with him את הנפש אשר עשו בחרן "the soul they had made in Charan." Rashi there comments that "Abraham would convert the men, and Sarah would convert the ...
Rashi to B'reshis 12:5 quotes Rav Huna: "... whom they brought [to Judaism]. Avraham was converting the men and Sara the women...". My understanding is that nowadays female prospective converts study ...