Deuteronomy 19:18

18 And the judges shall make diligent inquiry, and, behold, and unjust witness has borne unjust testimony; has stood up against his brother;

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 And if an unjust witness rise up against a man, alleging iniquity against him;
17 then shall the two men between whom the controversy is, stand before the Lord, and before the priests, and before the judges, who may be in those days.
18 And the judges shall make diligent inquiry, and, behold, and unjust witness has borne unjust testimony; has stood up against his brother;
19 then shall ye do to him as he wickedly devised to do against his brother, and thou shalt remove the evil from yourselves.
20 And the rest shall hear and fear, and do no more according to this evil thing in the midst of you.

The Brenton translation of the Septuagint is in the public domain.