David's refusal to harm King Saul, despite having the perfect opportunity, highlights his respect for God's anointed and his deep faith in God's justice. Saul, though pursuing David to kill him, is still the king chosen by God. David understands that taking matters into his own hands would be against God's will. By instructing his companion to take only Saul's spear and water jug, David demonstrates his ability to show mercy and restraint, choosing to trust in God's timing for justice and leadership change.
This moment reflects a broader principle of respecting God's authority and the roles He assigns, even when those in power may seem unworthy or unjust. It encourages believers to act with integrity and patience, trusting that God sees all and will act in His perfect timing. David's actions serve as a model of humility and faith, reminding us to leave judgment and vengeance to God, and to act with compassion and respect towards others, even in challenging circumstances.