Charles H. Spurgeon on Psalms 119:137

This passage deals with the perfect righteousness of Jehovah and his word, and expresses the struggles of a holy soul in reference to that righteousness. The initial letter with which every verse commences in the Hebrew is "P", and the keyword to us is PURITY.

Righteous art thou, O LORD. The Psalmist has not often used the name of Jehovah in this vast composition. The whole psalm shows him to have been a deeply religious man, thoroughly familiar with the things of God; and such persons never use the holy name of God carelessly, nor do they even use it at all frequently in comparison with the thoughtless and the ungodly. Familiarity begets reverence in this case. Here he uses the sacred name in worship. He praises God by ascribing to him perfect righteousness. God is always right, and he is always actively light, that is, righteous. This quality is bound up in our very idea of God. We cannot imagine an unrighteous God.

And upright are thy judgments. Here he extols God's word, or recorded judgments, as being right, even as their Author is righteous. That which conics from the Righteous God is itself righteous. Jehovah both saith and doth that which is right, and that alone. This is a great stay to the soul in time of trouble. When we are most sorely afflicted, and cannot see the reason for the dispensation, we may fall back upon this most sure and certain fact, that God is righteous, and his dealings with us are righteous too. It should be our glory to sing this brave confession when all things around us appear to suggest the contrary. This is the richest adoration this which rises from the lips of faith when carnal reason mutters about undue severity, and the like.