KJV
One witness shall not rise up against a
man for any iniquity, or for any sin, in any sin that he sinneth: at the
mouth of two witnesses, or at the mouth of three witnesses, shall the matter
be established.
BSB
A lone witness is not sufficient to establish any wrongdoing or sin against a man, regardless of what offense he may have committed. A matter must be established by the testimony of two or three witnesses.