Matthew 18:35

My heavenly Father will do the same to you unless you each forgive your brother from the heart."

Matthew 6:14-15

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

James 2:13

for the judgment will be merciless to the man who has shown no mercy ??whereas the merciful life will triumph in the face of judgment.

Matthew 6:12

and forgive us our debts as we ourselves have forgiven our debtors,

Matthew 7:1-2

Judge not, that you may not be judged yourselves;

Mark 11:25

Also, whenever you stand up to pray, if you have anything against anybody, forgive him, so that your Father in heaven may forgive you your trespasses."

Luke 6:37-38

Also, judge not, and you will not be judged yourselves: condemn not, and you will not be condemned: pardon, and you will be pardoned yourselves:

Luke 16:15

So he told them, "You are the people who get men to think you are good, but God knows what your hearts are! What is lofty in the view of man is loathsome in the eyes of God.

James 3:14

But if you are cherishing bitter jealousy and rivalry in your hearts, do not pride yourselves on that ??and be false to the truth.

James 4:8

draw near to God, and he will draw near to you. Cleanse your hands, you sinners, and purify your hearts, you double-minded.

Revelation 2:23

and her children I will exterminate. So shall all the churches know that I am the searcher of the inmost heart; I will requite each of you according to what you have done.

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 ourselves have forgiven our debtors,
Matthew 7:1
Judge not, that you may not be judged yourselves;
Luke 6:37
Also, judge not, and you will not be judged yourselves: condemn not, and you will not be condemned: pardon, and you will be pardoned yourselves:
James 2:13
for the judgment will be merciless to the man who has shown no mercy ??whereas the merciful life will triumph in the face of judgment.

From

Luke 16:15
So he told them, "You are the people who get men to think you are good, but God knows what your hearts are! What is lofty in the view of man is loathsome in the eyes of God.
James 3:14
But if you are cherishing bitter jealousy and rivalry in your hearts, do not pride yourselves on that ??and be false to the truth.
James 4:8
draw near to God, and he will draw near to you. Cleanse your hands, you sinners, and purify your hearts, you double-minded.
Revelation 2:23
and her children I will exterminate. So shall all the churches know that I am the searcher of the inmost heart; I will requite each of you according to what you have done.