Deuteronomy 17:18

A copy of this law ; literally, a double of this Law , i . e . not, as the LXX . have it, "This reiteration of the Law" ( τὸ δευτερονόμιον τοῦτο ), but a duplicate or copy of the Pentateuchal Law. The Jews understand by "double" that two copies of the Law were to be made by the king (Maimon; ' De Regibus,' e. 3. § 1); but this is unnecessary: every copy of a law is a double of it. Oat of that which is before the priests . The priests were the custodians of the written Law ( Deuteronomy 31:26 ); and from the text of their codex was the king's copy to be written.