The overriding topic is the relationship between God and the Israelites. See also:
Yes, the Old testament was quite avaliable to the New Testament writers.
The old testament is important to the Jews, but also to all christians.
The New Testament. All gospels are in the New Testament.
The New Testament and Old Testament. The Old Testament contains Jewish/Christian material, and the New Testament is all about Jesus.
The Bible is comprised of the Old Testament and the New Testament. The New Testament is part of the Bible. The Bible is made up of 66 books: 39 in the Old Testament and 27 In the New Testament.
The New Testament books were all written after Christ's resurrection. It is a separate testament from the Old Testament. We can see looking back all the many hints given in the Old Testament of a new and better testament to come, but hind sight is 20 20, as it was in large part hidden from the people living in the time of the Old Testament. All of the books of the Old Testament were written 400 years before Christ and earlier. The New Testament, as the Old Testament are both completely inspired by God.
There are 39 books in the Old Testament and 27 books in the New Testament (a total of 66 books in the Bible). There are 23,145 verses (KJV) in the Old Testament and 7,957 verses (KJV) in the New Testament. If all verses were equal, that would put the Old Testament at 74.4% and the New Testament at 25.6% of the entire Bible.
All look to the Old Testament as the root of their beliefs
In the old testament which has both the major and minor prophets, but in the new testament John the baptist is a prophet.
The old testament is all what happened before the coming of Jesus, the new testament is after jesus came and died.
The Old Testament.
The New Testament reveals the fulfillment of prophecies and promises made in the Old Testament, showing how Jesus Christ brings a new covenant and salvation for all people, which was not fully understood in the Old Testament.