Ecclesiastes 10:10-13

¹⁰If the ax is blunt, and one doesn’t sharpen the edge, then he must use more strength; but skill brings success.

¹¹If the snake bites before it is charmed, then is there no profit for the charmer’s tongue.

¹²The words of a wise man’s mouth are gracious; but a fool is swallowed by his own lips.

¹³The beginning of the words of his mouth is foolishness; and the end of his talk is mischievous madness.