Charles H. Spurgeon on Psalms 119:21

Thou hast rebuked the proud. David addeth another reason whereby he is more enflamed to pray unto God and to address himself unto him to be taught in his word; to wit, when he seeth that he hath so, "rebuked the proud." For the chastisement and punishments which God layeth upon the faithless and rebellious should be a good instruction for us; as it is said that God hath executed judgment, and that the inhabitants of the land should learn his righteousness. It is not without cause that the prophet Isaiah also hath so said; for he signifieth unto us that God hath by divers and sundry means drawn us unto him, and that chiefly when he teacheth us to fear his majesty. For without it, alas, we shall soon become like unto brute beasts: if God lay the bridle on our necks, what license we will give unto ourselves experience very well teacheth us. Now God seeing that we are so easily brought to run at random, sendeth us examples, because he would bring us to walk in fear and carefully. John Calvin.