Sarai’s offer was in line with the custom of the day ​ — that a barren wife was obligated to provide her husband with a concubine in order to produce an heir.
Sāras piedāvājums bija saskaņā ar tālaika paražu — neauglīgai sievietei bija jāatrod savam vīram blakussieva, lai varētu piedzimt mantinieks.