Psalms 38:20

This is more fully confirmed in the following verse, in which he declares that they requited him evil for the good which he had done them. More than this, however, is implied in the language of David. It implies that he not only abstained from all hurtful dealing towards his enemies, but that he had done them all the good which was in his power; and on this account the rage of the wicked is the less excusable, which not only moves them to do harm to others without cause, but which likewise cannot be appeased by any marks of kindness exercised towards them. It is indeed true, that there is nothing which wounds those of an ingenuous disposition of mind more than when wicked and ungodly men recompense them in a manner so dishonorable and unjust; but when they reflect upon this consolatory consideration, that God is no less offended with such ingratitude than those to whom the injury is done, they have no reason to be troubled beyond measure. To mitigate their sorrow, let this doctrine be the subject of their frequent meditation, That whenever the wicked, to whom we have endeavored to do good, shall requite us evil for good, God will certainly be their judge. In the last place, it is added, as the highest degree of their desperate wickedness, that they hated David because he studied to practice uprightness: They are opposed to me, because I follow that which is good It must be admitted, that those are froward and wicked in the extreme, nay, even of a devilish disposition, who hold uprightness in such abhorrence that they deliberately make war upon those who follow after it. It is, indeed, a very sore temptation, that the people of God, the more sincerely they endeavor to serve him, should procure to themselves so much the more trouble and sorrow; but this consideration ought to prove a sufficient ground of consolation to them, that they are not only supported by the testimony of a good conscience, but that they also know that God is ever ready, and that, too, for this very reason, to manifest his mercy towards them. On the ground of this assurance, they dare to appear in the presence of God, and entreat him, as it is his cause as well as theirs, that he would maintain and defend it. There can be no doubt that David, by his own example, has prescribed this as a common rule to all the faithful, rather to incur the hatred and ill-will of the world, than in the least degree to swerve from the path of duty, and without any hesitation to regard those as their enemies whom they know to be opposed to that which is just and righteous.