Rashi in Bamidbar 20:2 notes that until Miriam died the be'er [literally well] gave water. Was this be'er the rock which Moshe hit in Shemos 17? Or was it a well, and if so where is the first source ...
Does anyone have access to the Mossad HaRav Kook edition of Rabbi Yosef Bechor-Shor's peirush (commentary) on the Torah? Specifically, if anyone is able to scan and upload an image of the section(s) ...