Be not righteous over much
This is not meant of true and real righteousness, even moral righteousness, a man cannot be too holy or too righteous; but of a show and ostentation of righteousness, and of such who would be thought to be more righteous and holy than others, and therefore despise those who, as they imagine, do not come up to them; and are very rigid and censorious in their judgment of others, and very severe in their reproofs of them; and, that they may appear very righteous persons, will do more than what the law requires of them to do, even works of supererogation, as the Pharisees formerly, and Papists now, pretend, and abstain from the lawful use of things which God has given to be enjoyed; and macerate their bodies by abstinence, fastings, pilgrimages, penance, scourges, and the like, as the Eremites among the Christians, and the Turks, as Aben Ezra on the place observes; and many there be, who, by an imprudent zeal for what they judge right, and which sometimes are mere trifles, and by unseasonable reproofs for what is wrong, expose themselves to resentment and danger. Some understand this of political and punitive justice, exercising it in too strict and rigorous a manner, according to the maxim, "summum jus saepe summa injuria est" F23; and Schultens F24, from the use of the word in the Arabic language, renders it, "be not too rigid"; and others, in a contrary sense, of too much mercy and pity to offenders. So the Midrash; and Jarchi illustrates it by the case of Saul, who had mercy on the wicked, and spared Agag. The Targum is,
``be not over righteous at a time that a sinner is found guilty of slaughter in thy court of judicature, that thou shouldest spare and not kill him;''neither make thyself over wise;