Ezekiel 33:12

Therefore, thou son of man, say unto the children of thy
people (See Gill on Ezekiel 33:2). The purport of what the prophet is bid to say in this and some following verses is, that the righteousness of a man that trusts in it, he sinning and not repenting, shall not save him; and that the wickedness of a repenting sinner shall not damn him: the righteousness of the righteous shall not deliver him in the day of
his transgression;
this must be understood, not of a truly righteous man, or of the righteousness of Christ, by which such an one is made so; for that righteousness does deliver those to whom it is imputed, from sin and the condemnation of it, even in the day of his transgression, which is every day of his life; for there is not a just man that does good, and sinneth not; and in the day when his sin is shown him, and he is convinced of it, this removes the guilt of it; and in the day it will be sought for, or he may be charged with it, and when the sins of others will be brought to an account, the righteousness by which he is justified will deliver him from avenging justice; from the curse of the law; from the wrath of God; from eternal death, and everlasting damnation; but this is to be interpreted of one that is not truly righteous, and of a man's own righteousness; and which he trusts to, as is afterwards expressed; and may and does turn from: this can never deliver a man in the day of his transgression from the guilt and condemnation of it; for a man's own righteousness is but what he ought to do; and, was it ever so perfect, yet, should he commit one single sin, it would not justify him from it, or deliver him from the curse of the law and wrath of God due unto it: as for the wickedness of the wicked, he shall not fall thereby in the
day that he turneth from his wickedness;
when he is truly convinced of his sin, and the evil of it; is heartily sorry for it, after a godly sort; ingenuously confesses it, and departs from it; applies to Christ, to his blood and righteousness, for pardon and acceptance; though his wickedness has been ever so great, or attended with ever such aggravating circumstances, yet it shall not damn him; or he shall not fall by it into hell and everlasting perdition; but shall be saved in the Lord with an everlasting salvation: neither shall the righteous be able to live for his righteousness in
the day that he sinneth;
he cannot live by it, nor for it; as it cannot justify him, it cannot save him, or bring him to heaven, or entitle him to eternal life; he is not able to live comfortably now; when his sin is charged upon him, his righteousness will not relieve him; and much less will he be able to live happily hereafter; he must and will die in his sins, being found in them, for anything his own righteousness can do for him: this is the same with the former clause, and is repeated in different words for the confirmation of it; self-righteous persons not being easily convinced of the truth of these things.