Deceitful lies

People speak lies to hide their crime. Fear of punishment prompts them to hide the same; but that does not annihilate their penchant to commit crime. As a result, the liar progressively falls. His improvement becomes impossible; hopes of his progress are eliminated.

Few people speak lies to save the life of others. Such lies spoken with non-violent intentions are pure, strengthens virtue; it is not a sin.

Few people utter lies for realization of their selfish goal. They have a cunning mind; they have a tendency to cheat others. In the scriptural language, it is called deceitful lies. This is a great sin. Everyone must avoid this. Lie spoken without full knowledge can be ignored; but spoken with deceitful intentions is not forgivable.

- Sutrakritanga Sutra 1/8/16