Ecclesiastes 10:11-14

¹¹If the snake bites the snake charmer before it's charmed, there's no benefit to the snake charmer!

¹²Wise words are beneficial, but fools destroy themselves by what they say.

¹³Fools begin by saying foolish things, and end up talking evil nonsense.

¹⁴Fools talk on and on, however no one knows what's going to happen, so who can say what the future holds?