Ecclesiastes 10:9-11

Contemporary English Version

⁹ You could even get hurt
by chiseling a stone
    or chopping a log.
¹⁰ If you don't sharpen your ax,
    it will be harder to use;
if you are wise,
    you'll know what to do.^[a]
11 The power to charm a snake
does you no good
    if it bites you anyway.