Matthew 18:15

And if your brother sin against you, go and tell him of his fault between you and him alone; if he hear you, you have gained your brother.

1 Corinthians 9:19-21

For, though I am free from all men, yet have I made my self a servant to all, that I may gain the more.

Colossians 3:13

bearing with one another, and forgiving one another, if any one have a complaint against any; even as Christ forgave you, so also do you:

James 5:19-20

Brethren, if any among you should err from the truth, and one should turn him back,

1 Peter 3:1

Likewise, you wives, be in subjection to your own husbands; that, if any obey not the word, they may, without the word, be won by the conduct of their wives,

Matthew 18:35

So also will my heavenly Father do to you, if, from your hearts, you forgive not every one his brother's offenses.

Luke 17:3-4

Take heed to yourselves; if your brother sin against you, rebuke him; and if he repent, forgive him.

Romans 12:21

Be not overcome by evil; but overcome evil with good.

1 Corinthians 6:6-8

But brother goes to law with brother, and this before the unbelievers?

1 Corinthians 8:12

But if you sin in this way against the brethren, and wound their weak conscience, you sin against Christ.

2 Corinthians 7:12

Therefore, though I wrote to you, it was not on account of him who did the wrong, nor on account of him who received the wrong; but that our diligent care for you, in the sight of God, might be made manifest to you.

Galatians 6:1

Brethren, if a man be overtaken in any fault, do you, who are spiritual, restore such a one in the spirit of meekness, considering yourself, lest you also be tempted.

1 Thessalonians 4:6

That no one take advantage of or injure his brother in this matter; because the Lord takes vengeance for all such things, as we also told you before, and fully testified:

2 Thessalonians 3:15

and yet do not regard him as an enemy, but admonish him as a brother.

Treasury of Scripture Knowledge

Summary

Moreover if thy brother shall trespass against thee, go and tell him his fault between thee and him alone: if he shall hear thee, thou hast gained thy brother.

Bible References

If

Matthew 18:35
So also will my heavenly Father do to you, if, from your hearts, you forgive not every one his brother's offenses.
Luke 17:3
Take heed to yourselves; if your brother sin against you, rebuke him; and if he repent, forgive him.
1 Corinthians 6:6
But brother goes to law with brother, and this before the unbelievers?
1 Corinthians 8:12
But if you sin in this way against the brethren, and wound their weak conscience, you sin against Christ.
2 Corinthians 7:12
Therefore, though I wrote to you, it was not on account of him who did the wrong, nor on account of him who received the wrong; but that our diligent care for you, in the sight of God, might be made manifest to you.
Colossians 3:13
bearing with one another, and forgiving one another, if any one have a complaint against any; even as Christ forgave you, so also do you:
1 Thessalonians 4:6
That no one take advantage of or injure his brother in this matter; because the Lord takes vengeance for all such things, as we also told you before, and fully testified:

Thou hast

Romans 12:21
Be not overcome by evil; but overcome evil with good.
1 Corinthians 9:19
For, though I am free from all men, yet have I made my self a servant to all, that I may gain the more.
James 5:19
Brethren, if any among you should err from the truth, and one should turn him back,
1 Peter 3:1
Likewise, you wives, be in subjection to your own husbands; that, if any obey not the word, they may, without the word, be won by the conduct of their wives,