Midrash – Lashon hara

Midrash Shocher Tov

“The damage done by evil talk is compared to the piercing destruction of an arrow. Why is the tongue compared to an arrow? An arrow cannot be called back once it has been shot, even if the marksman wishes to do so. Just as the victim does not know about it until it actually reaches him, so the effects of evil talk are not felt until the arrows of a wicked person pierce him.”