21 You will be protected from the lash of the tongue, and need not fear when destruction comes.

Read Job 5:21 Using Other Translations

Thou shalt be hid from the scourge of the tongue: neither shalt thou be afraid of destruction when it cometh.
You shall be hidden from the lash of the tongue, and shall not fear destruction when it comes.
You will be safe from slander and have no fear when destruction comes.