Something that may safely be believed. This term dates from the Middle Ages, when Christianity was almost universally accepted in Western civilization. Thus Chaucer used “gospel” in numerous places to mean incontrovertible truth. The word “gospel” is actually a corruption of the Old English godspel, meaning “good tidings,” and was used to signify the glad tidings preached by Jesus, the life of Jesus as told in the New Testament (whose first four books are generally referred to as the Gospels), and the religious doctrine set forth there. Thus gospel truth literally means something as true as what is contained in the Gospels, which once were believed to be literally true, and the term has survived universal belief in that faith by a good many years.