Rejoiceth not in iniquity - Does not rejoice over the “vices” of other people; does not take delight when they are guilty of crime, or when, in any manner, they fall into sin. It does not find pleasure in hearing others accused of sin, and in having it proved that they committed it. It does not find a malicious pleasure in the “report” that they have done wrong; or in following up that report, and finding it established. Wicked people often find pleasure in this Romans 1:32, and rejoice when others have fallen into sin, and have disgraced and ruined themselves. People of the world often find a malignant pleasure in the report, and in the evidence that a member of the Church has brought dishonor on his profession. A man often rejoices when an enemy, a persecutor, or a slanderer has committed some crime, and when he has shown an improper spirit, uttered a rash expression, or taken some step which shall involve him in ignominy. But love does none of these things. It does not desire that an enemy, a persecutor, or a slanderer should do evil, or should disgrace and ruin himself. It does not rejoice, but grieves, when a professor of religion, or an enemy of religion - when a personal friend or foe has done anything wrong. It neither loves the wrong, nor the fact that it has been done. And perhaps there is no greater triumph of the gospel than in its enabling a man to rejoice that even his enemy and persecutor in any respect does well; or to rejoice that he is in any way honored and respected among people. Human nature, without the gospel, manifests a different feeling; and it is only as the heart is subdued by the gospel, and filled with universal benevolence, that it is brought to rejoice when all people do well.
Rejoiceth in the truth - The word “truth” here stands opposed to “iniquity,” and means virtue, piety, goodness. It does not rejoice in the “vices,” but in the “virtues” of others. It is pleased, it rejoices when they “do well.” It is pleased when those who differ from us conduct themselves in any manner in such a way as to please God, and to advance their own reputation and happiness. They who are under the influence of that love rejoice that good is done, and the truth defended and advanced, whoever may be the instrument; rejoice that others are successful in their plans of doing good, though they do not act with us; rejoice that other people have a reputation well earned for virtue and purity of life, though they may differ from us in opinion, and may be connected with a different denomination. They do not rejoice when other denominations of Christians fall into error; or when their plans are blasted; or when they are calumniated, and oppressed, and reviled.
By whomsoever good is done, or wheresoever, it is to them a matter of rejoicing; and by whomsoever evil is done, or wheresoever, it is to them a matter of grief; see –Philippians 1:14-18. The “reason” of this is, that all sin, error, and vice will ultimately ruin the happiness of anyone; and as love desires their happiness, it desires that they should walk in the ways of virtue, and is grieved when they do not. What a change would the prevalence of this feeling produce in the conduct and happiness of mankind! How much ill-natured joy would it repress at the faults of others? How much would it do to repress the pains which a man often takes to circulate reports disadvantageous to his adversary; to find out and establish some flaw in his character; to prove that he has said or done something disgraceful and evil! And how much would it do even among Christians, in restraining them from rejoicing at the errors, mistakes, and improprieties of the friends of revivals of religion, and in leading them to mourn over their errors in secret, instead of taking a malicious pleasure in promulgating them to the world! This would be a very different world if there were none to rejoice in iniquity; and the church would be a different church if there were none in its bosom but those who rejoiced in the truth, and in the efforts of humble and self-denying piety.