CCC 2482

"A lie consists in speaking a falsehood with the intention of deceiving." St. Augustine, De mendacio 4, 5: PL — Patrologia Latina (Migne): 491. The Lord denounces lying as the work of the devil: "You are of your father the devil, . . . there is no truth in him. When he lies, he speaks according to his own nature, for he is a liar and the father of lies." Jn 8:44.