1st Samuel 24:2 Then Saul took three thousand chosen men out of all Israel, and went to seek David and his men upon the rocks of the wild goats. 3 And he came to the sheepcotes by the way, where was a cave; and Saul went in to cover his feet: and David and his men remained in the sides of the cave.
A Biblical example of the forgiveness Jesus enjoins upon us was manifested when king Saul pursued David like a wild beast in the caves and mountains yet David decided not to mete out justice when he had the opportunity to do so. David’s men in some of these instances drooled for revenge, but David held firm, and would try to get even. David went even further, for after the death of Saul, he mourned for the king, and he took care of Saul’s family who survived.
Thus, the following passages show that David forgave Saul his trespasses, but as far as the sins of Saul goes, they remain unto this day, for he never sought for God for forgiveness. So yes, David took the high road, by not rendering evil for evil, and by not harboring bad feelings, and hatred against Saul, but those actions do absolutely nothing to remove any of Saul’s sins from the books of heaven, for only God can forgive sins.
1st Samuel 24:4 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. 5 And it came to pass afterward, that David's heart smote him, because he had cut off Saul's skirt.
1st Samuel 24:6 And he said unto his men, The Lord forbid that I should do this thing unto my master, the Lord's anointed, to stretch forth mine hand against him, seeing he is the anointed of the Lord.
May God add His blessing to the study of His word. “Good night” and God bless!