We learn in the Torah that Hashem lied to Avraham about what Sarah said. Rashi says that Hashem changed the truth when telling it over to Avraham for the sake of peace. From episode we learn that just as G-d lied for the sake of peace, we can as well.
Is this only regarding peace with one's spouse? or does this apply to other interpersonal relationships eg. Parents, friends, co-workers, children. Are there any sources which discuss this?