All the things that were written beforehand were written for our instruction....Rom. 15:4.
In the Bible many conflicts among humans was recorded. Let's Consider just the first few chapters of Genesis. Cain kills Abel (Gen. 4:3-8) Lamech kills a young man for striking him (Gen. 4:23) the shepherds of Abraham and Lot quarrel (Gen. 13:5-7) Hagar despises Sarah who becomes upset with Abraham (Gen. 16:3-6) Ishmael is against everyone and everyone’s hand is against him. Why does the Bible mention such incidents? The reason here is that the Bible want imperfect humans to learn why they need to be peaceable. It also shows us the way we can practice it. Bible accounts about people struggling with life and conflicts help us to learn how we should react if we find ourselves in such situations.