Bede

All iniquity is sin, etc. Such is the diversity of sins, he says, that everything which deviates from the rule of equity is counted among the sins, although small sins cannot in any way take away or diminish the merit of righteousness from the just, as long as they are those without which this life cannot be lived, and likewise there are certain sins so discordant with all justice, committed with such iniquity, that without any contradiction, unless they are corrected, they lead their perpetrator to eternal punishment. …

Commentary on the Catholic Epistles ↗