Question:
If a woman has long hair, is it sufficient for a head covering according to 1 Corinthians 11:15?

Answer:
No, verses 14 and 15 are talking about the difference between men and women which nature shows should be seen in the difference in the length of their hair. Woman’s hair is to be longer than a man’s hair because her hair is her glory. But when a woman prays or prophesies (speaks the Word for God), she is to cover the glory of her hair (verses 3-13). Thus she shows that God has made the man her head. The angels thus learn the place God has put men and women in His Divine order in creation and because of the fall (1 Timothy 2:12-14).