Proverbs 28:13

13 He that denieth his sin shall not prosper; But he that acknowledgeth and forsaketh it shall obtain mercy. Thus is this proverb translated by Luther, and thus it lives in the mouth of the Christian people. He who falsely disowns, or with self-deception excuses, if he does not altogether justify his sins, which are discernible as פּשׁעים, has no success; he remains, after Psa 32:1-11, in his conscience and life burdened with a secret ban; but he who acknowledges (the lxx has ἐξηγούμενος instead of ἐξομολογούμενος, as it ought to be) and forsakes (for the remissio does not follow the confessio, if there is not the accompaniment of nova obedientia) will find mercy (ירחם, as Hos 14:4). In close connection therewith stands the thought that man has to work out his salvation "with fear and trembling" (Phi 2:12).

Here is, 1. The folly of indulging sin, of palliating and excusing it, denying or extenuating it, diminishing it, dissembling it, or throwing the blame of it upon others: He that thus covers his sins shall not prosper, let him never expect it. He shall not succeed in his endeavour to cover his sin, for it will be discovered, sooner or later. There is nothing hid which shall not be revealed. A bird of the air shall carry the voice. Murder will out, and so will other sins. He shall not prosper, that is, he shall not obtain the pardon of his sin, nor can he have any true peace of conscience. David owns himself to have been in a constant agitation while he covered his sins, Psa 32:3, Psa 32:4. While the patient conceals his distemper he cannot expect a cure. 2. The benefit of parting with it, both by a penitent confession and a universal reformation: He that confesses his guilt to God, and is careful not to return to sin again, shall find mercy with God, and shall have the comfort of it in his own bosom. His conscience shall be eased and his ruin prevented. See Jo1 1:9; Jer 3:12, Jer 3:13. When we set sin before our face (as David, My sin is ever before me) God casts it behind his back.

28:13 The wise admit their mistakes and sins and pursue correction (see Ps 32:1-5).