Luke 19:22

The gentleman replied to him, 'I will judge you [based] on what you [yourself] have [just] said, you evil slave. [Since] you knew that I am a hard man to deal with, picking up [and keeping] something I had not laid down, and harvesting a crop I had not planted,

Matthew 12:37

For you will be considered righteous by the words [you speak] and you will be condemned by the words [you speak]."

Matthew 26:65

Then the head priest tore at his clothing [i.e., as an expression of frustration], saying, "He has spoken against God [i.e., by claiming Deity for Himself]. What additional need do we have for witnesses? Look, you [yourselves] have now heard him speaking against God.

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 you will be considered righteous by the words [you speak] and you will be condemned by the words [you speak]."
Matthew 26:65
Then the head priest tore at his clothing [i.e., as an expression of frustration], saying, "He has spoken against God [i.e., by claiming Deity for Himself]. What additional need do we have for witnesses? Look, you [yourselves] have now heard him speaking against God.
Luke 19:22
The gentleman replied to him, 'I will judge you [based] on what you [yourself] have [just] said, you evil slave. [Since] you knew that I am a hard man to deal with, picking up [and keeping] something I had not laid down, and harvesting a crop I had not planted,