And they lay wait for their own blood; they lurk privily for their own lives.
– Proverbs 1:18
The sinners are deceived in thinking their traps are for someone else. They will be taken in their own traps. The trap of folly runs throughout Proverbs. Fools are taken down in their own foolishness. Solomon is exposing the folly for what it is. They are making plans out of greed but they are the ones that will come to ruin.