Since much of the New Testament hadn't been written yet it had to be the Old Testament.
The new testament is made of books mainly by the apostles and the rest are books written by Paul.
The Old Testament was before Jesus, it is the history of God's dealings with His people. The New Testament was after Jesus was born, it was mainly written by His apostles about His teachings and His works.
Mainly christians use both the books , but mainly the new testament as it has more on Jesus.
This is not proven or given any significant fact. The reason is not mainly known, but the number 12 in the Bible correspond to the 12 Tribes of the Israel in the Old Testament.
It was mainly Matthew and john the apostles wrote it. but Mark and Luke also wrote but they were not apostles.
The book of Acts in the new testament is mainly about the early christian church and the early believers. And the way the disciples managed after the death of Jesus. It also speaks of the holy spirit for the first time coming in.
The New Testament is divided into five main sections: the Gospels (Matthew, Mark, Luke, John), Acts of the Apostles, Pauline Epistles (letters written by Paul), General Epistles (letters written by other apostles), and Revelation. Each section covers different aspects of Christianity, from the life and teachings of Jesus to the early church's development and teachings.
The apostles all came from Galilee and were mainly fishermen , even though Matthew was a tax collector.
It was mainly Paul.
It was mainly used in the new testament.
27 books.
The new testament contains the teaching of Jesus, and the books of Paul and the four gospels mainly.