Jeremiah 11:20

But, O Lord, thou judgest righteously It is matter of comfort to us, when men deal unjustly with us, that we have a God to go to, who doth and will plead the cause of injured innocence, and appear against the injurious. God's justice, which is a terror to the wicked, is a comfort to the godly. That triest the reins and the heart That perfectly knowest what is in man, that discernest his most secret thoughts, desires, and designs. Let me see thy vengeance on them That is, do justice between me and them in such a way as thou pleasest. “When men continue implacable in their malice,” says Lowth, “we may lawfully expect and desire that God will plead our cause, and judge us according to our righteousness. For the bringing wicked men to condign punishment tends both to the manifestation of God's glory and the good government of the world. And to pray against our enemies in this sense, namely, not for the satisfying our private resentments, but the setting forth of God's justice, is not contrary to the spirit of Christianity. So St. Paul prayed against Alexander the copper-smith, 2 Timothy 4:14.” It must be observed, however, that, according to the Hebrew text here, the words are merely a prediction; מהם אראה נקמתן, being literally, I shall see thy vengeance on them; that is, I foresee it, and predict it, though I lament they should have given occasion for it.