David's response to his king who has betrayed him time and time again can be a model for us as well, as we encounter leaders who are not all they should be.
David's time is not so unlike our own. Politically, there were two factions. The leader in power was appointed by God to be the first king of Israel, but David had been anointed to be the next king. The people had picked sides. You were either like the Ziphites on the side of Saul, quick to reveal David's location to the king and see him slaughtered, or you were like David's band, people oppressed and disadvantaged because of the current powers. Both sides were ready for war. They wanted their leader solidly in power and the other to go away. Abishai represented the thought of David's followers in 1 Samuel 26:8 when he said in speaking of Saul the king, "let me pin him to the ground with one thrust of my spear". Our political climate is just as emotionally charged even to the point of violence.
David quashes the intended murder of the king , reminding Abishai that the king was appointed by God and it will be God who takes him out of power. David won't be the one to spill the blood of the king. God would not bless the one who assumed power by his own hand. (Just an aside, I think of all the times I have gotten ahead of God's plan for my life by acting when I should have waited; may the Lord forgive me for my arrogance). David spares the life of the king, but takes the spear and water jug next to the king to demonstrate he had the power to do harm but chose not to exercise it. David does so much to maintain the unity of Israel by demonstrating his respect for God and the king.
Next, David calls out to the Captain of the Guard, Abner (1 Samuel 26:13-16). David chastises him for not doing his duty to the king. The king's life could have been taken because he did not do his job. Saul hears the commotion and recognizes David's voice. David didn't play the victim. He challenged the king to consider whether the angst in their relationship was stirred by God because David had wronged him or if it was men's doing. David was willing to right any wrongs, but if men had created the division between them, David called on God to curse them (1 Samuel 26:19). I don't believe God intends that we follow leaders blindly, but we work to sort out the source of any division and correct it. If it is our own pride and arrogance, then we should lay that aside. If there is a sin committed, then we should reach out to breech the gap.
Saul apologizes and asks David to return to the king's service. David merely returns the items taken and indicates that he will put his fate in the Lord's hands and goes his own way. Saul blesses David and then returns to his home. David knows the danger is not passed and the peace is temporary. He gives honor to the king, but does not place himself in the line of fire. He goes his way enjoying the temporary peace provided. We do well to recognize that here there are some who will not offer us a permanent peace (unless God should change their hearts). We work toward peace and make sure division is not caused by our actions and we embrace the temporary times of peace we receive.
Living a life in God's service does not mean we will avoid the conflict and strife here. It may even bring more. We should rightly respect people who hold positions of authority in our lives, but act wisely to maintain our integrity and to respect God's appointments.
May God richly bless you as you seek Him and as you serve Him.