Arthur Peake's Commentary on the Bible
Deuteronomy 21 - Introduction
Deuteronomy 12-26, 28. A code of laws (Deuteronomy 1-26) followed by promises to the obedient and threats of punishment for the rest (Deuteronomy 28): see Introd., p. 231. The great Deuteronomic law of one sanctuary is taught or implied in Deuteronomy 12:1 to Deuteronomy 19:13 and hardly in any other part of Dt. This section may, therefore, represent essentially the original Deuteronomic code (see Introd.).