Gospel

n. [A-S. godspell, from gōd, good, and spell, history, story, tidings; answering to the Gr. εὐαγγέλιον, Lat. evangelium, Eng. evangely, a good or joyful message.] 1. Glad tidings; especially, the good news concerning Christ and his salvation; the substance or most important truths of Christianity. The steadfast belief of the promises of the gospel. Bentley.

2. One of the historical narratives of the life and sayings of Jesus Christ, the Savior; as, the Gospel of Matthew.
3. Any system of religious truth or doctrine.