The Basics of Judaism: G-d & Torah: The Old Testament and the New Testament:
What is the origin of the terms "Old Testament" and "New Testament"?
The concept that the Christian Bible is the "New Testament", in contrast to the Jewish "Old Testament", goes back to the earliest days of Christianity; see 2 Corinthians 3: 6,14. For Christians, "Old" and "New"
don't simply refer to the relative ages; they also refer to the Christian view that the New superseded the Old. (The term "new testament" is used in a different sense in Luke 22:20 and 1 Corinthians 11:25.) The Jews don't use the term "Old Testament" because they believe that there's only one
"Testament"; they also use the term "Covenant" rather than "Testament".
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