1 Samuel 7:6

7:6 After they had assembled at Mizpah, they drew water and poured it out before the Lord. They fasted on that day, and they confessed there, “We have sinned against the Lord.” So Samuel led the people of Israel at Mizpah.

1 Samuel 12:20

12:20 Then Samuel said to the people, “Don’t be afraid. You have indeed sinned. However, don’t turn aside from the Lord. Serve the Lord with all your heart.

1 Samuel 15:24

15:24 Then Saul said to Samuel, “I have sinned, for I have disobeyed what the Lord commanded and what you said as well. For I was afraid of the army, and I followed their wishes.

1 Samuel 15:30

15:30 Saul again replied, “I have sinned. But please honor me before the elders of my people and before Israel. Go back with me so I may worship the Lord your God.”

1 Samuel 20:1

Jonathan Seeks to Protect David

20:1 David fled from Naioth in Ramah. He came to Jonathan and asked, “What have I done? What is my offense? How have I sinned before your father? For he is seeking my life!”

1 Samuel 26:21

26:21 Saul replied, “I have sinned. Come back, my son David. I won’t harm you, for you treated my life with value this day. I have behaved foolishly and have made a very terrible mistake!”