Abraham is first mentioned in the Old Testament.
Twelve New Testament Books mention Abraham.
Abraham is an Old Testament patriarch. He is not canonized nor does he have the title of saint. That term is usually reserved for New Testament personages.
The Old Testament.
New Testament
Yes the stories of jacob and Esau are in the old testament, as they were twins born to Isaac , the son of Abraham in genesis.
Jonah is from the Old Testament.
New Testament
James is from the New Testament.
John is from the New Testament.
Matthew is from the New Testament.
The Old Testament and the New Testament are both parts of the Christian Bible. The Old Testament contains the religious texts of Judaism and sets the foundation for the teachings in the New Testament. The concept of the New Testament is concealed within the Old Testament through prophecies, symbols, and foreshadowing of the coming of Jesus Christ as the Messiah. The New Testament then fulfills these prophecies and teachings, providing a continuation and fulfillment of the promises made in the Old Testament.
Sarah is found in the Old Testament, specifically the book of Genesis. She is known specifically for her role as the wife of Abraham, and the mother of Isaac.