Deuteronomy is a sequel to Numbers. Narrated in it are three speeches and two poems, spoken by Moses in Moab before the crossing of Jordan, in which he gives the Ten Commandments to the chosen people. A minor narrative in three of the chapters tells of the last days of Moses.

Deuteronomy 19

19:15 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.