1 Corinthians 11:3-6

But I want you to understand that Christ is the head of every man, and the man is the head of a woman, and God is the head of Christ. Every man who has something on his head while praying or prophesying disgraces his head. But every woman who has her head uncovered while praying or prophesying disgraces her head, for she is one and the same as the woman whose head is shaved. For if a woman does not cover her head, let her also have her hair cut off; but if it is disgraceful for a woman to have her hair cut off or her head shaved, let her cover her head.