In their sacred books, such as the great Scroll of the War of the Sons of Light Against the Sons of Darkness, the brethren could read how God had given them the Prince of Light as their supernatural ally to help them contend against Satan, and against his human allies. The Prince of Light thou has appointed to come to our support: but Satan, the angel Mastema, thou hast created for the pit; he rules in darkness, and his purpose is to bring about evil and sin (1 QM 19:10–12).

