Ecclesiastes 10:9-11

The Voice

⁹     Whoever quarries stones may be crushed by them,
        and whoever splits wood may be hurt by flying debris.
¹⁰     If a tool is dull and no one sharpens its edge, the work will be harder;
        the advantage of wisdom is this: it brings success.
¹¹     If a snake bites before it is charmed,
        there is no advantage in being a snake charmer.