A number of miracles are credited to Saint Jacob by Saint Theodoret in Historia Religiosa (Religious History), in which the saint had a boulder explode beside a Persian judge who had given an unjust judgement.[11] Also, in one incident, Saint Jacob cursed boastful, promiscuous women by a spring so that their hair became white, and the spring disappeared.[12] The women subsequently repented, and the spring returned, however, the women's hair remained white.[12] As well as this, a group of people attempted to deceive the saint whereby they asked for money to fund the burial of a man they had lain down and covered with a sheet with the illusion of death; consequently, the man died, and the people repented and thus the man was resurrected as a result of Saint Jacob's prayers.[12]