Charles H. Spurgeon on Psalms 73:9

They set their mouth against the heavens. Against God himself they aim their blasphemies. One would think, to hear them, that they were demigods themselves, and held their heads above the clouds, for they speak down upon other men as from a sublime elevation peculiar to themselves. Yet they might let God alone, for their pride will make them enemies enough without their defying him. And their tongue walketh through the earth. Leisurely and habitually they traverse the whole world to find victims for their slander and abuse. Their tongue prowls in every corner far and near, and spares none. They affect to be universal censors, and are in truth perpetual vagrants. Like the serpent, they go nowhere without leaving their slime behind them; if there were another Eden to be found, its innocence and beauty would not preserve it from their filthy trail. They themselves are, beyond measure, worthy of all honour, and all the rest of mankind, except a few of their parasites, are knaves, fools, hypocrites, or worse. When these men's tongues are out for a walk, they are unhappy who meet them, for they push all travellers into the kennel: it is impossible altogether to avoid them, for in both hemispheres they take their perambulations, both on land and sea they make their voyages. The city is not free from them, and the village swarms with them. They waylay men in the king's highway, but they are able to hunt across country, too. Their whip has a long lash, and reaches both high and low.