Ecclesiastes 10:8-10

The Voice

⁸     If you dig a pit, you may fall into it.
        If you tear down an old wall, a snake may come out and bite you.
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.