CCC 1815

The gift of faith remains in one who has not sinned against it. Cf. Council of Trent (1547): DS — Denzinger–Schönmetzer (Enchiridion Symbolorum). But "faith apart from works is dead": Jas 2:26. when it is deprived of hope and love, faith does not fully unite the believer to Christ and does not make him a living member of his Body.