10 It is for this reason that a woman ought to have authority over her owna head, because of the angels.

Read 1 Corinthians 11:10 Using Other Translations

For this cause ought the woman to have power on her head because of the angels.
That is why a wife ought to have a symbol of authority on her head, because of the angels.
For this reason, and because the angels are watching, a woman should wear a covering on her head to show she is under authority.