Abraham is first mentioned in the Old Testament.
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.
Twelve books in the New Testament mention Abraham.
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.
New 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.
Wisdom is found in both the Old Testament and the New Testament of the Bible. In the Old Testament, books like Proverbs, Ecclesiastes, and Job contain teachings on wisdom. In the New Testament, wisdom is also discussed in passages such as James 3:13-18.
Jesus was in the new testament and not the old testament.
The Old Testament is a collection of religious texts sacred to Judaism and Christianity. It contains historical accounts, laws, prophecies, and poetry that are seen as foundational to understanding the history and teachings of these faiths. It is valued for its moral guidance, wisdom, and insights into the relationship between humanity and the divine.
The New Testament. All gospels are in the New Testament.
It is the first book in the New Testament.