How many years were there between Abraham and the cross?
From the call of Abraham in Genesis chapter 12 to the cross is another 2000 years, according to the Old Testament timeline. This matches the earlier 2000-year period from Adam to Abraham, completing 4000 years from Adam to the cross.
Les explains that the Old Testament timeline runs from Adam at 4004 B.C. to Abraham at about 2000 B.C. The Flood is placed around 1400 B.C., and the first 2000 years of human history are covered in Genesis 1–11. Chapter 12 begins with Abraham, and all the rest of the Old Testament goes from that point on. Then from the call of Abraham all the way up to the cross is another 2000 years.