Scripture
The generalized term Scripture is used to refer to religious texts from any religion. The intent is to avoid reliance on specific Judeo-Christian references that only represent half of the world's population. When speaking of universalist ideas it helps to make them as universal as possible.
Scripture is the foundation of Doctrine, but Doctrine can also include interpretations and traditions introduced by religious leaders and institutions over the centuries. Doctrine can also refer to non-religious codifications of belief.