Charles H. Spurgeon on Psalms 9:16

Jehovah is known by the judgment which he executeth; his holiness and abhorrence of sin is thus displayed. A ruler who winked at evil would soon be known by all his subjects to be evil himself, and he, on the other hand, who is severely just in judgment reveals his own nature thereby. So long as our God is God, he will not, he cannot spare the guilty; except through that one glorious way in which he is just, and yet the justifier of him that believeth in Jesus. We must notice, secondly, that the manner of his judgment is singularly wise, and indisputably just. He makes the wicked become their own executioners. "The heathen are sunk down in the pit that they made," etc. Like cunning hunters they prepared a pitfall for the godly and fell into it themselves: the foot of the victim escaped their crafty snares, but the toils surrounded themselves: the cruel snare was laboriously manufactured, and it proved its efficacy by snaring its own maker. Persecutors and oppressors are often ruined by their own malicious projects. "Drunkards kill themselves; prodigals beggar themselves;" the contentious are involved in ruinous costs; the vicious are devoured with fierce diseases; the envious eat their own hearts; and blasphemers curse their own souls. Thus, men may read their sin in their punishment. They sowed the seed of sin, and the ripe fruit of damnation is the natural result.