13 and you shall have an implement among your equipment, and when you sit down outside, you shall dig with it and turn and cover your refuse.

Matthew Henry's Commentary on Deuteronomy 23:13

Commentary on Deuteronomy 23:9-14

(Read Deuteronomy 23:9-14)

The camp of the Lord must have nothing offensive in it. If there must be this care taken to preserve the body clean, much more should we be careful to keep the mind pure.