Rabbi Yaron Reuven brings an important lesson about jealousy from Parashat Vayakhel and Masechet Mo'ed Katan 18b. The wise hearted Jewish women wouldn't give their gold to make the Golden Calf, but when Moshe Rabbeinu asked for contributions for the Mishkan, the women were inspired to give all they had, and this made their husbands very jealous!

Good Jealousy? Rabbi Yaron Reuven says, there's only one kind of jealousy that's permitted, to be jealous of Torah. All other jealousy is...