THE OLD AND THE NEW TESTAMENT.
The name Old Testament was applied to the books of Moses by St. Paul (II. Cor. iii. 14), inasmuch as the former covenant comprised the whole scheme of the Mosaic revelation, and the history of this is contained in them. The phrase “book of the covenant,” taken from Exod. xxiv. 7, was transferred in the course of time by metonymy to signify the writings themselves. The term New Testament has been in common use since the third century, and was employed by Eusebius in the sense in which it is now applied.