1 Clemens 30

Seeing, therefore, that we are the portion of the Holy One, let us do all those things which pertain to holiness, avoiding all evil-speaking, all abominable and impure embraces, together with all drunkenness, seeking after change, all abominable lusts, detestable adultery, and execrable pride. For God, [says the Scripture], resists the proud, but gives grace to the humble. Let us cleave, then, to those to whom grace has been given by God. Let us clothe ourselves with concord and humility, ever exercising self-control, standing far off from all whispering and evil-speaking, being justified by our works, and not our words. For [the Scripture] says, He that speaks much, shall also hear much in answer. And does he that is ready in speech deem himself righteous? Blessed is he that is born of woman, who lives but a short time: be not given to much speaking. Let our praise be in God, and not of ourselves; for God hates those that commend themselves. Let testimony to our good deeds be borne by others, as it was in the case of our righteous forefathers. Boldness, and arrogance, and audacity belong to those that are accursed of God; but moderation, humility, and meekness to such as are blessed by Him.