1 John 1:9

If we confess our sins, he is faithful, and just to forgive us our sins, and to cleanse us from all unrighteousness.

1 John 1:7

But if we walk in the light as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.

Titus 2:14

Who gave himself for us, that he might redeem us from all iniquity, and purify to himself a peculiar people, zealous of good works.

Romans 3:26

I say, of his righteousness in this present time, that he might be just, and yet the justifier of him that believeth in Jesus.

1 Corinthians 6:11

And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.

Matthew 3:6

And were baptized of him in Jordan, confessing their Sins.

Mark 1:5

And there went out to him all the land of Judea, and all they of Jerusalem, and were baptized of him in the river Jordan, confessing their sins.

Acts 19:18

And many of those who believed came, confessing and openly declaring their deeds.

1 Corinthians 1:9

God is faithful, by whom ye were called into the fellowship of his Son Jesus Christ our Lord.

Ephesians 5:26

That he might sanctify it (having cleansed it by the washing of water) through the word:

1 Timothy 1:15

This is a faithful saying, and worthy of all acceptation, that Christ Jesus came into the world to save sinners, of whom I am the chief.

Hebrews 6:10

For God is not unrighteous, to forget your work and labour of love, which ye have shewed toward his name, in that ye have ministered to the saints, and do minister.

Hebrews 10:23

Let us hold fast the profession of our faith without wavering (for he is faithful that hath promised) And let us consider one another,

Hebrews 11:11

By faith Sarah also herself received power to conceive seed, even when she was past age, because she accounted him faithful who had promised.

Revelation 15:3

And they sing the song of Moses, the servant of God, and the song of the Lamb, saying, Great and wonderful are thy works, Lord God Almighty; just and true are thy ways, O King of the nations?

Treasury of Scripture Knowledge

Summary

If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.

General references

Bible References

We confess

Matthew 3:6
And were baptized of him in Jordan, confessing their Sins.
Mark 1:5
And there went out to him all the land of Judea, and all they of Jerusalem, and were baptized of him in the river Jordan, confessing their sins.
Acts 19:18
And many of those who believed came, confessing and openly declaring their deeds.

He is

1 Corinthians 1:9
God is faithful, by whom ye were called into the fellowship of his Son Jesus Christ our Lord.
1 Timothy 1:15
This is a faithful saying, and worthy of all acceptation, that Christ Jesus came into the world to save sinners, of whom I am the chief.
Hebrews 10:23
Let us hold fast the profession of our faith without wavering (for he is faithful that hath promised) And let us consider one another,
Hebrews 11:11
By faith Sarah also herself received power to conceive seed, even when she was past age, because she accounted him faithful who had promised.

Just

Romans 3:26
I say, of his righteousness in this present time, that he might be just, and yet the justifier of him that believeth in Jesus.
Hebrews 6:10
For God is not unrighteous, to forget your work and labour of love, which ye have shewed toward his name, in that ye have ministered to the saints, and do minister.
Revelation 15:3
And they sing the song of Moses, the servant of God, and the song of the Lamb, saying, Great and wonderful are thy works, Lord God Almighty; just and true are thy ways, O King of the nations?

And to

1 John 1:7
But if we walk in the light as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.
1 Corinthians 6:11
And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.
Ephesians 5:26
That he might sanctify it (having cleansed it by the washing of water) through the word:
Titus 2:14
Who gave himself for us, that he might redeem us from all iniquity, and purify to himself a peculiar people, zealous of good works.

General references

1 Corinthians 11:31
For if we would judge ourselves, we should not be judged.
Hebrews 8:12
For I will be merciful to their unrighteousness and their sins and their iniquities will I remember no more.