Ecclesiastes 10:12-14

Common English Bible

¹² Words from a wise person’s mouth are beneficial,
    but fools are devoured by their own lips.
¹³ Fools start out talking foolishness
    and end up speaking awful nonsense.
¹⁴ Fools talk too much!
    No one knows what will happen;
    no one can say what will happen in the future.