Matthew 18:35

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

Matthew 6:14-15

For if ye forgive men their trespasses, your heavenly Father will also forgive you;

James 2:13

For the judgment shall be without mercy to him that showed no mercy. Mercy glorieth against judgment.

Matthew 6:12

and forgive us our debts, as we also have forgiven our debtors;

Matthew 7:1-2

Judge not, that ye be not judged.

Mark 11:25

And when ye stand praying, forgive, if ye have aught against any one, that your Father who is in heaven may also forgive you your trespasses.

Luke 6:37-38

And judge not, and ye will not be judged; and condemn not, and ye will not be condemned; forgive, and ye will be forgiven;

Luke 16:15

And he said to them, Ye are they who justify yourselves before men; but God knoweth your hearts; for that which is highly exalted among men is an abomination before God.

James 3:14

But if ye have bitter rivalry and strife in your hearts, do not glory and lie against the truth.

James 4:8

Draw nigh to God, and he will draw nigh to you. Cleanse your hands, ye sinners, and purify your hearts, ye doubleminded.

Revelation 2:23

And her children I will slay with death; and all the churches shall know that I am he who searcheth the reins and hearts; and I will give to every one of you according to your works.

Treasury of Scripture Knowledge

Summary

So likewise shall my heavenly Father do also unto you, if ye from your hearts forgive not every one his brother their trespasses.

Bible References

Do

Matthew 6:12
and forgive us our debts, as we also have forgiven our debtors;
Matthew 7:1
Judge not, that ye be not judged.
Mark 11:26
(...)
Luke 6:37
And judge not, and ye will not be judged; and condemn not, and ye will not be condemned; forgive, and ye will be forgiven;
James 2:13
For the judgment shall be without mercy to him that showed no mercy. Mercy glorieth against judgment.

From

Luke 16:15
And he said to them, Ye are they who justify yourselves before men; but God knoweth your hearts; for that which is highly exalted among men is an abomination before God.
James 3:14
But if ye have bitter rivalry and strife in your hearts, do not glory and lie against the truth.
James 4:8
Draw nigh to God, and he will draw nigh to you. Cleanse your hands, ye sinners, and purify your hearts, ye doubleminded.
Revelation 2:23
And her children I will slay with death; and all the churches shall know that I am he who searcheth the reins and hearts; and I will give to every one of you according to your works.