Miriam, the elder sister of Moses and Aaron, was afflicted with tzaraat (leprosy) after speaking negatively of Moses, and was quarantined outside of the camp for seven days--as related in Numbers 12
Links:
The Biblical account (with Rashi's commentary)
About Miriam
About Lashon Hara (negative speech)
We Jews are a diverse people. We speak many languages. We live in every part of the world. We have different cultures, foods, political views.
But when a Jew’s mind is absorbed within Torah, it is the same Torah within which another Jew is absorbed. And another Jew. And yet another.
We discuss and debate and share and challenge and discuss yet more.
Until all of us become one in mind, soul and body, within one grand conversation of an endless Torah.