Charles Spurgeon Commentary 1 Corinthians 11:4-7

"Every man praying or prophesying, having his head covered, dishonoreth his head. But every woman praying or prophesying with her head unveiled dishonoreth her head; for it is one and the same thing as if she were shaven. For if a woman is not veiled, let her also be shorn: but if it is a shame to a woman to be shorn or shaven, let her be veiled. For a man indeed ought not to have his head veiled, forasmuch as he is the image and glory of God: but the woman is the glory of the man." — 1 Corinthians 11:4-7 (ASV)

It is given in order that he may himself profit, and also that he may be the means of profiting those who hear him.