Ecclesiastes 10:12-14

Authorized (King James) Version

¹² The words of a wise man’s mouth are gracious;
but the lips of a fool will swallow up himself.
¹³ The beginning of the words of his mouth is foolishness:
and the end of his talk is mischievous madness.
¹⁴ A fool also is full of words:
a man cannot tell what shall be;
and what shall be after him, who can tell him?