The Old Testament refers to all versions and translations of the Hebrew Bible and is the first major part of the Bible used by Christians.
And the New Testament sometimes called the Greek Testament or Greek Scriptures, and sometimes also New Covenant which is the literal translation of the Greek, is the name given to the final portion of the Christian Bible.
The original texts were written by various authors after c. 45 AD and before c. 140 AD. Its books were gradually collected into a single volume over a period of several centuries. The New Testament is a central element of Christianity, and has played a major role in shaping modern Western culture.
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