Deuteronomy 21:12

Then thou shalt bring her home to thine house; and she shall shave her head, and pare her nails;

Cross-references

In 1 Corinthians 11:5, an uncovered head is like a shaven head (dishonorable), contrasting with the commanded shaving here.

In 1 Corinthians 11:6, shaving the head is disgraceful, contrasting with the commanded shaving of the captive woman.