Deut 17:19-20: ""It shall be with him and he shall read it all the days of his life, that he may learn to fear the Lord his God, by carefully observing all the words of this law and these statutes, that his heart may not be lifted up above his countrymen and that he may not turn aside from the commandment, to the right or the left, so that he and his sons may continue long in his kingdom in the midst of Israel" (NASU).
This passage referred to the responsibility of leaders to study and rely upon the law of God as they governed. It kept them humble, centered on God, and guided their decisions so they would not stray from His path. Of course, this wasn't easy and the Israelite leaders failed many times. When they strayed, God faithfully delivered consequences for their failures.
God's advice for leaders hasn't changed! As the leader of your family, recognize your need to learn from God's Word. When we sacrifice personal study and meditation, we tend to lose our godly focus quickly, both for ourselves and for our family as well. Are consequences far behind?
Part of being a good leader is turning to your Leader for guidance every day.