Ecclesiastes 10:10-12

Common English Bible

¹⁰ If an ax is dull
    and one doesn’t sharpen it first,
    then one must exert more force.
It’s profitable to be skillful and wise.
¹¹ If a snake bites before it’s charmed,
    then there’s no profit
    for the snake charmer.
¹² Words from a wise person’s mouth are beneficial,
    but fools are devoured by their own lips.