לא תלך רכיל בעמיך?

Thou shalt not go up and down as a talebearer among thy people; neither shalt thou stand idly by the blood of thy neighbour: I am the LORD.

Who is a sycophant? One who loads himself up with matters, and goes from this one to that one, saying to each, such did that man say, thus and such have I heard concerning that man, even though it be true, behold him, he destroys the universe. There is yet an extremely grosser iniquity, which, too, is included in this prohibitive commandment, and that is, the evil tongue, one who spreads scandal about his fellow even though he be telling truth. If he be lying, he is called a maligner who invents an evil name against his fellow. The owner of an evil tongue, behold him, he sits in company and relates, saying: thus and such did that certain party, thus and such were his parents, and thus and such I did hear about him and of course, he relates scandalous matters. Of him, the Verse says: "May the Lord cut off all flattering lips, the tongue that speaketh proud things" (Ps. 12.4).