The two Books of Samuel contain valuable historical material concerning the religious and moral conditions of the period. Samuel is the great prophet-judge who helps to unite the scattered tribes under one king, Saul. The history of the reigns of Saul and David is also recorded.

2 Samuel 13

13:3 But Amnon had a friend, whose name was Jonadab, the son of Shimeah David's brother: and Jonadab was a very subtle man.