Charles H. Spurgeon on Psalms 119:85

The proud have digged pits for me, which are not after thy law. As men who hunt wild beasts are wont to make pitfalls and snares, so did David's foes endeavour to entrap him. They went laboriously and cunningly to work to ruin him, "they digged pits"; not one, but many. If one would not take him, perhaps another would, and so they digged again and again. One would think that such haughty people would not have soiled their fingers with digging; but they swallowed their pride in hopes of swallowing their victim. Whereas they ought to have been ashamed of such meanness, they were conscious of no shame, but, on the contrary, were proud of their cleverness; proud of setting a trap for a godly man. "Which are not after thy law." Neither the men nor their pits were according to the divine law: they were cruel and crafty deceivers, and their pits were contrary to the Levitical law, and contrary to the command which bids us love our neighbour. If men would keep to the statutes of the Lord, they would lift the fallen out of the pit, or fill up the pit so that none might stumble into it; but they would never spend a moment in working injury to others. When, however, they become proud, they are sure to despise others; and for this reason they seek to circumvent them, that they may afterwards hold them up to ridicule. It was well for David that his enemies were God's enemies, and that their attacks upon him had no sanction from the Lord. It was also much to his gain that he was not ignorant of their devices, for he was thus put upon his guard, and led to watch his ways lest he should fall into their pits. While he kept to the law of the Lord he was safe, though even then it was an uncomfortable thing to have his path made dangerous by the craft of wanton malice.