1 Kings 2:1-3 When the time drew near for David to die, he gave a charge to Solomon his son. “I am about to go the way of all the earth,” he said. “So be strong, act like a man, and observe what the Lord your God requires: Walk in obedience to him, and keep his decrees and commands, his laws and regulations, as written in the Law of Moses. Do this so that you may prosper in all you do and wherever you go 
David had seen what happened when he did and did not follow God’s commands. This wisdom was the first and of most importance that he passed on to his child. May I do the same for my child.