Disobedience can be both active and passive as well as obedience. In 1 Chronicles, chapter 10, Saul's unfaithfulness was both active and passive. 

In 1 Samuel 16, while Saul is on the throne, Samuel, a prophet anoints David as Israel's next king. David then conquers Goliath and establishes a friendship with Saul's son, Johnathan. When Saul realizes that David will become king one day, he becomes jealous and tries to kill David on several occasions. David does escape into Philistine until Saul is killed in battle.

In 1 Chronicles, chapter 10, David becomes king and the Philistines defeated Saul's army. During the battle, Saul was injured by archers. Saul then asked his armor-bearer to run a sword in him, because he was worried that he would be abused, but the armor-bearer did not do as Saul asked and so Saul took his own sword and fell on it. When the armor-bearer saw this, he too fell on his sword.

In 1 Chronicles 10:13-14, tells us the following:
13 Saul died because he was unfaithful to the Lord; he did not keep the word of the Lord and even consulted a medium for guidance, 14 and did not inquire of the LORD. So the LORD put him to death and turned the kingdom over to David son of Jesse.

Saul's unfaithfulness was both active and passive. He not only did wrong, but he also failed to do what was right. He actively disobeyed by attempting to murder David, ignoring God's instructions and he also went out seeking guidance from a witch. He passively disobeyed by neglecting to ask God for guidance as he ran the kingdom.

Think about this, why does the verse say the LORD put Saul to death when Saul took his own life? God had rejected Saul, because of his stubbornness and rebellion and had judged him for his sins. God arranged a defeat in battle, so that Saul would die and his kingdom would be taken from his family. If Saul had not taken his own life, the Philistine soldiers would have killed him.

You know, David stumbled and fell occasionally, but he kept walking step by step with God, sincerely wanting to be obedient unlike Saul. Through David's successes and his failures, we can learn the importance of giving our whole heart to God and letting him be the focus of our lives, striving each day to be consistent in our obedience to his will.