Deuteronomy 19:18

18 and the judges shall make a thorough inquiry. If the witness is a false witness, having testified falsely against another,

Deuteronomy 19:18 Meaning and Commentary

Deuteronomy 19:18

And the judges shall make diligent inquisition
Into the case before them, into the nature of the evidence and proof that each witness brings for or against; so the Targum of Jonathan,

``the judges shall interrogate the witness, by whom these things are said, well;''

shall thoroughly examine the testimony given, and look carefully into it:

and, behold, if the witness be a false witness, and hath testified
falsely against his brother;
it appears plainly by full evidence that he has testified a falsehood of him.

Deuteronomy 19:18 In-Context

16 If a malicious witness comes forward to accuse someone of wrongdoing,

17 then both parties to the dispute shall appear before the Lord, before the priests and the judges who are in office in those days,

18 and the judges shall make a thorough inquiry. If the witness is a false witness, having testified falsely against another,

19 then you shall do to the false witness just as the false witness had meant to do to the other. So you shall purge the evil from your midst.

20 The rest shall hear and be afraid, and a crime such as this shall never again be committed among you.