Reply To: when it is permitted to lie.

For the sake of someone’s sholom bayis it may be permitted under certain conditions. Hashem prevaricated with Avraham Avinu when He told Avraham that Sara laughed because she said SHE is too old to have a baby, when in fact she was laughing because she said her HUSBAND was a zakein. Hashem was protecting their sholom bayis.