1 Corinthians 11:4-6

4Every man who prays or prophesies with something on his head dishonors his head [and the One who is his head].

5And every woman who prays or prophesies when she has her head uncovered disgraces her head; for she is one and the same as the woman whose head is shaved [in disgrace].

6If a woman does not cover her head, she should have her hair cut off; and if it is disgraceful for a woman to have her hair cut off or her head shaved, she should cover her head.