John Calvin's Bible Commentary
Psalms 119:41
41.Let thy mercies come to me There can be no doubt, that, in mentioning the mercy of God first, and afterwards his salvation, the Psalmist, according to the natural order, puts the cause before the effect. By adopting this arrangement, he acknowledges that there is no salvation for him but in the pure mercy of God. And while he desires a gracious salvation, he, at the same time, relies on the promise, as we have already elsewhere seen.
In the second verse he boasts that he is furnished with the best defense against the calumnies of his enemies, arising from his trust in the word of God. We may resolve the future tense into the optative mood, as many do: O Lord, since I have trusted in thy word, grant that my mouth with all boldness may repel the slanders which they utter against me, and suffer me not to be silent when they load me with unmerited reproach.” Whichever of these meanings we adopt, we are taught that there will always be evil-speakers, who will not cease to defame the children of God, though they be entirely undeserving of such treatment. It is somewhat dubious to what particular kind of reproach he refers; for the ungodly not only cover the children of God with ignominy, but also make their faith the subject of ridicule. I prefer the following interpretation, because it agrees best with the context, and David is here placing his trust in God in opposition to their derision. “I shall have something to reply to the base mockery of the enemies who injure me without cause, in that God never disappoints those who place their confidence in him.” If any one be inclined to consider the passage as embracing both meanings, I offer no objection to it. Besides, he does not simply say, that he trusted in God, but that he also trusted in his word, which is the ground of his trust. We must carefully attend to the correspondence and mutual relation between the term word, in the first part of the verse, and that in the other. Were not God, by his Word, to furnish us with another word for our defense, we would instantly be overwhelmed with the insolence of our enemies. If, then, we wish to be proof against the attacks of the world, the commencement and foundation of our magnanimity is here pointed out to us, — our trusting in God’s word, guarded by which, the Spirit of God calls upon us boldly to contemn the virulent blasphemies of the ungodly. And to qualify us for repelling such blasphemies, he connects the word of hope with the word of confession.