Luke 19:22

He said to him, 'Out of your own mouth I will convict you, you wretched slave! You knew, did you, that I was a stern man, and that I pick up what I did not lay down, and harvest what I did not sow?

Matthew 12:37

For it is by your words that you will be acquitted, or by your words that you will be condemned."

Matthew 26:65

Then the high priest tore his clothing and said, "He has uttered blasphemy! What do we want of witnesses now? Here you have heard his blasphemy!

Treasury of Scripture Knowledge

Summary

Thine own mouth condemneth thee, and not I: yea, thine own lips testify against thee.

Bible References

Own mouth

Matthew 12:37
For it is by your words that you will be acquitted, or by your words that you will be condemned."
Matthew 26:65
Then the high priest tore his clothing and said, "He has uttered blasphemy! What do we want of witnesses now? Here you have heard his blasphemy!
Luke 19:22
He said to him, 'Out of your own mouth I will convict you, you wretched slave! You knew, did you, that I was a stern man, and that I pick up what I did not lay down, and harvest what I did not sow?