Ecclesiastes 7:22

Often your own heart knows you have also cursed others.

1 Kings 2:44

You know very well all the wrong that you did to my father David. Jehovah will punish you for it.

Matthew 15:19

Evil thoughts come from the heart! Thoughts about murder, adultery, fornication, theft, lying, and slander come from the heart!

Matthew 18:32-35

His lord sent for him, and said: 'Evil servant; I made you free of all that debt, because of your request to me.

James 3:9

We bless Jehovah, the Father, with it. (Psalm 34:1) Then we curse men, who are made after the likeness of God.

Treasury of Scripture Knowledge

Summary

For oftentimes also thine own heart knoweth that thou thyself likewise hast cursed others.

General references

Bible References

Also

1 Kings 2:44
You know very well all the wrong that you did to my father David. Jehovah will punish you for it.
Matthew 15:19
Evil thoughts come from the heart! Thoughts about murder, adultery, fornication, theft, lying, and slander come from the heart!
Matthew 18:32
His lord sent for him, and said: 'Evil servant; I made you free of all that debt, because of your request to me.
James 3:9
We bless Jehovah, the Father, with it. (Psalm 34:1) Then we curse men, who are made after the likeness of God.

General references

1 Samuel 24:9
David asked Saul: Why do you listen to rumors that I am trying to harm you?