We read how Avraham was going around convincing people to believe in one G-d and of his many students. Yet we don't hear of those students (or their descendants) ever again. What happened to them ...
Shabbos 67b says Gad was the name of an idol of the Amorites, and Dan was an idol of Samaria. If we're not supposed to even say the name of idols, how could Yaakov name his sons after them? (or is it ...