13 and a nail thou hast on thy staff, and it hath been, in thy sitting without, that thou hast digged with it, and turned back, and covered thy filth;

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.