Cosmic dualism in the Yahad texts presents history as a struggle between ordered holiness and destructive darkness. The visible community is one front in a larger heavenly conflict.

This differs from later absolute dualism: God remains sovereign, but hostile powers are active within the present age until final judgment.

Sources: Community Rule; War Scroll; Hodayot; related apocalyptic traditions.

The dualism here is structured but not equal. God remains creator and final judge; darkness is powerful only within the appointed period. That distinction matters because the Yahad view is not two ultimate gods in conflict, but a single sovereign God allowing a temporary conflict that reveals, tests, and sorts humanity. The doctrine provides the architecture for the community’s map of reality: present suffering is not random, corrupt priests are part of a larger conflict, angels participate, and the final outcome is already fixed. This node therefore anchors several other Yahad concepts.