"God sets forth an example to those who disbelieve: the wife of Noah and the wife of Lot, they were both under two of Our righteous servants, but they acted treacherously towards them so they availed them naught against God, and it was said: Enter both the fire with those who enter." — Qur'an, Sura 66 (At-Tahrim), ayat 10
Can someone explain to me what exactly did she do that made God angry?