1 Chronicles 21:8

and David saith unto God, 'I have sinned exceedingly, in that I have done this thing; and now, cause to pass away, I pray Thee, the iniquity of Thy servant, for I have acted very foolishly.'

2 Samuel 12:13

And David saith unto Nathan, 'I have sinned against Jehovah.' And Nathan saith unto David, 'Also -- Jehovah hath caused thy sin to pass away; thou dost not die;

Genesis 34:7

and the sons of Jacob came in from the field when they heard, and the men grieve themselves, and it is very displeasing to them, for folly he hath done against Israel, to lie with the daughter of Jacob -- and so it is not done.

1 Samuel 13:13

And Samuel saith unto Saul, 'Thou hast been foolish; thou hast not kept the command of Jehovah thy God, which He commanded thee, for now had Jehovah established thy kingdom over Israel unto the age;

1 Samuel 26:21

And Saul saith, 'I have sinned; turn back, my son David, for I do evil to thee no more, because that my soul hath been precious in thine eyes this day; lo, I have acted foolishly, and do err very greatly.'

2 Samuel 13:13

And I -- whither do I cause my reproach to go? and thou -- thou art as one of the fools in Israel; and now, speak, I pray thee, unto the king; for he doth not withhold me from thee.'

2 Samuel 24:10

And the heart of David smiteth him, after that he hath numbered the people, and David saith unto Jehovah, 'I have sinned greatly in that which I have done, and now, O Jehovah, cause to pass away, I pray Thee, the iniquity of Thy servant, for I have acted very foolishly.'

2 Chronicles 10:9

and he saith unto them, 'What are ye counselling, and we answer this people that have spoken unto me, saying, Make light somewhat of the yoke that thy father put upon us?'

Psalm 25:11

For Thy name's sake, O Jehovah, Thou hast pardoned mine iniquity, for it is great.

Psalm 32:5

My sin I cause Thee to know, And mine iniquity I have not covered. I have said, 'I confess concerning My transgressions to Jehovah,' And Thou -- Thou hast taken away, The iniquity of my sin. Selah.

Psalm 51:1-3

To the Overseer. -- A Psalm of David, in the coming in unto him of Nathan the prophet, when he hath gone in unto Bath-Sheba. Favour me, O God, according to Thy kindness, According to the abundance of Thy mercies, Blot out my transgressions.

Jeremiah 3:13

Only, know thine iniquity, For against Jehovah thy God thou hast transgressed, And thou dost scatter thy ways to strangers, Under every green tree, And to My voice thou hast not hearkened, An affirmation of Jehovah.

Hosea 14:2

Take with you words, and turn to Jehovah, Say ye unto Him: 'Take away all iniquity, and give good, And we do render the fruit of our lips.

Luke 15:18-19

having risen, I will go on unto my father, and will say to him, Father, I did sin -- to the heaven, and before thee,

John 1:29

on the morrow John seeth Jesus coming unto him, and saith, 'Lo, the Lamb of God, who is taking away the sin of the world;

1 John 1:9

if we may confess our sins, stedfast He is and righteous that He may forgive us the sins, and may cleanse us from every unrighteousness;

Treasury of Scripture Knowledge

Summary

And David said unto God, I have sinned greatly, because I have done this thing: but now, I beseech thee, do away the iniquity of thy servant; for I have done very foolishly.

Bible References

I have sinned

2 Samuel 12:13
And David saith unto Nathan, 'I have sinned against Jehovah.' And Nathan saith unto David, 'Also -- Jehovah hath caused thy sin to pass away; thou dost not die;
2 Samuel 24:10
And the heart of David smiteth him, after that he hath numbered the people, and David saith unto Jehovah, 'I have sinned greatly in that which I have done, and now, O Jehovah, cause to pass away, I pray Thee, the iniquity of Thy servant, for I have acted very foolishly.'
Psalm 25:11
For Thy name's sake, O Jehovah, Thou hast pardoned mine iniquity, for it is great.
Psalm 32:5
My sin I cause Thee to know, And mine iniquity I have not covered. I have said, 'I confess concerning My transgressions to Jehovah,' And Thou -- Thou hast taken away, The iniquity of my sin. Selah.
Jeremiah 3:13
Only, know thine iniquity, For against Jehovah thy God thou hast transgressed, And thou dost scatter thy ways to strangers, Under every green tree, And to My voice thou hast not hearkened, An affirmation of Jehovah.
Luke 15:18
having risen, I will go on unto my father, and will say to him, Father, I did sin -- to the heaven, and before thee,
1 John 1:9
if we may confess our sins, stedfast He is and righteous that He may forgive us the sins, and may cleanse us from every unrighteousness;

Do away

Psalm 51:1
To the Overseer. -- A Psalm of David, in the coming in unto him of Nathan the prophet, when he hath gone in unto Bath-Sheba. Favour me, O God, according to Thy kindness, According to the abundance of Thy mercies, Blot out my transgressions.
Hosea 14:2
Take with you words, and turn to Jehovah, Say ye unto Him: 'Take away all iniquity, and give good, And we do render the fruit of our lips.
John 1:29
on the morrow John seeth Jesus coming unto him, and saith, 'Lo, the Lamb of God, who is taking away the sin of the world;

I have done

Genesis 34:7
and the sons of Jacob came in from the field when they heard, and the men grieve themselves, and it is very displeasing to them, for folly he hath done against Israel, to lie with the daughter of Jacob -- and so it is not done.
1 Samuel 13:13
And Samuel saith unto Saul, 'Thou hast been foolish; thou hast not kept the command of Jehovah thy God, which He commanded thee, for now had Jehovah established thy kingdom over Israel unto the age;
1 Samuel 26:21
And Saul saith, 'I have sinned; turn back, my son David, for I do evil to thee no more, because that my soul hath been precious in thine eyes this day; lo, I have acted foolishly, and do err very greatly.'
2 Samuel 13:13
And I -- whither do I cause my reproach to go? and thou -- thou art as one of the fools in Israel; and now, speak, I pray thee, unto the king; for he doth not withhold me from thee.'
2 Chronicles 10:9
and he saith unto them, 'What are ye counselling, and we answer this people that have spoken unto me, saying, Make light somewhat of the yoke that thy father put upon us?'