Similarly, Samuel's sons, did not walk in his ways, but turned aside after dishonest gain, took bribes and perverted justice (I Samuel 8:3). The fact that Samuel was a great spiritual leader, priest and judge did not seem to make any difference to his sons. He was always on the move, involved in the problems of others; as a result, his sons became leaders and used their positions for personal gain. Samuel is an example of a father who failed to train his children.
David was a soldier, a shepherd, a poet, a statesman, a prophet and "a man after God's own heart". Yet what did he model for his sons? Did David's sins of lust, adultery and murder influence them, or was it just the fact that David had many wives? His infant son died, a direct result of David's sin. Amon lusted for and raped Tamar, just as David had lusted for Bathsheba. Absalom killed Amon, just as David had killed Uriah. Adonijah was spoiled and undisciplined, and tried to make himself king. Solomon indulged in 700 wives, just as David had indulged in a plurality of wives. David is an example of the failure to be an example.
This one is by Derrick Mueller, instructor at Bethany Bible Institute.