In a moment of moral collapse and sudden clarity, the King of Israel confesses his wrongdoings directly to the man he has been hunting. His admission reveals deep regret over his past actions, a delayed recognition of God's guiding hand, and profound amazement at the noble spirit of his victim. Saul begs David to come back home and resume his former place. The primary approach among commentators is that this plea is a genuine invitation to return, with the specific intention of sparing David the hardship of fleeing the country and living in exile [מלבי״ם].
Saul promises never to harm David again, grounding this vow in the fact that David deeply valued his life. He recognizes that David stood close enough to kill him but consciously chose to spare his life instead [ביאור שטיינזלץ, אברבנאל]. Saul is utterly astonished that David is willing to forgive him yet again. Human nature typically allows a person to forgive someone up to three times. However, this marks the fourth time Saul has attacked him. Because of this, David's willingness to pardon him on this specific occasion is viewed as an extraordinary act that rises far above normal human behavior [אלשיך].
Concluding his confession, Saul admits to acting with severe foolishness and making grave errors [מצודת ציון]. He acknowledges that his entire pursuit was baseless, especially since he could clearly see that God was with David [מצודת דוד]. Commentators offer several ways to understand the distinction between the foolishness and the error in Saul's confession, weaving them into a broader picture of his guilt. One perspective explains that the foolishness was the very act of ignoring God's obvious protection over David. The grave error, meanwhile, was forgetting David's past kindness, as Saul had continued his hunt even after David previously spared his life in a cave [רלב״ג, אברבנאל].
Another approach views the confession as a reflection of how the persecution escalated over time, corresponding to four distinct attempts to harm David. The initial foolishness represents the first attack in David's own home, while the subsequent error refers to chasing him to the region of Ramah. The severity of his actions grew during the incident in the cave, culminating in this current pursuit, which is recognized as the most extreme of all [אלשיך].
From a final viewpoint, this confession highlights a broader process of spiritual decline. A person often begins to sin intentionally, acting out of deliberate foolishness. This initial rebellion inevitably causes them to deteriorate further, leading them to stumble through unintentional errors as well. Ultimately, the individual bears full responsibility for both stages of their downfall [חומת אנך].