Ecclesiastes 10:11-13

Young's Literal Translation

¹¹ If the serpent biteth without enchantment, Then there is no advantage to a master of the tongue.

¹² Words of the mouth of the wise [are] gracious, And the lips of a fool swallow him up.

¹³ The beginning of the words of his mouth [is] folly, And the latter end of his mouth [Is] mischievous madness.