Proverbs 11:5

The righteousness of the perfect shall direct his way: but the wicked shall fall by his own wickedness.

The righteousness of the perfect shall direct his way - safely to the desired end. "The perfect" - i:e., the upright, the sincere in aim (cf. ).

But the wicked shall fall by his own wickedness - which is the opposite of the 'direct way.' Instead of reaching the goal of heaven safely, as "the perfect," he shall "fall" forever.