Sin is moral evil, a bad human act, a failure in human self-realization, undue attachment to things and consequent detachment from God. Sins may rule our life and make us like slaves (Rom 3:9; 7:14). Indeed, “Everyone who commits a sin is a slave of sin” (Jn 8:34). Sin, grave sin is bad use of freedom. St. Augustine tells us in his Confessions that when he was in sin – when as a young man lived a loose life – , he had “the freedom of a run-away slave.” Sin is a betrayal of love that disrupts our relationship with God, with ourselves, with others and with nature (Vatican II, GS 13). From the sin of Adam and Eve, sin presents itself as promise, but it is no more than an illusion and a lie (A. Peteiro).
