1 Samuel 26:8
“Then said Abishai to David, God hath delivered thine enemy into thine hand this day: now therefore let me smite him, I pray thee, with the spear even to the earth at once, and I will not smite him the second time.”
Then answered David and said to Ahimelech the Hittite, and to Abishai the son of Zeruiah, brother to Joab, saying, Who will go down with me to Saul to the camp? And Abishai said, I will go down with thee.
So David and Abishai came to the people by night: and, behold, Saul lay sleeping within the trench, and his spear stuck in the ground at his bolster: but Abner and the people lay round about him.
Then said Abishai to David, God hath delivered thine enemy into thine hand this day: now therefore let me smite him, I pray thee, with the spear even to the earth at once, and I will not smite him the second time.
And David said to Abishai, Destroy him not: for who can stretch forth his hand against the Lord’s anointed, and be guiltless?
David said furthermore, As the Lord liveth, the Lord shall smite him; or his day shall come to die; or he shall descend into battle, and perish.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And the men of David said unto him, Behold the day of which the Lord said unto thee, Behold, I will deliver thine enemy into thine hand, that thou mayest do to him as it shall seem good unto thee. Then David arose, and cut off the skirt of Saul’s robe privily.”
“What do ye imagine against the Lord? he will make an utter end: affliction shall not rise up the second time.”
“And it was told Saul that David was come to Keilah. And Saul said, God hath delivered him into mine hand; for he is shut in, by entering into a town that hath gates and bars.”
“And the Lord gave them rest round about, according to all that he sware unto their fathers: and there stood not a man of all their enemies before them; the Lord delivered all their enemies into their hand.”
“And David abode in the wilderness in strong holds, and remained in a mountain in the wilderness of Ziph. And Saul sought him every day, but God delivered him not into his hand.”