1 Corinthians 11:7

For a man indeed ought not to cover his head The Apostle now gives reasons for what he has just said. His firstargument is that to appear uncovered in the congregation denotes the having no visible superior there. But woman hasa visible superior, namely, man. To this fact, when she appears in public, her very dress should testify. See also 1 Corinthians 11:10.

forasmuch as he is the image and glory of God Additional reason for the Apostle's directions. Man is God's image(Genesis 1:26-27; Genesis 5:1; Genesis 9:2; Genesis 9:6), inasmuch as he is the highest of all living beings in the visible world. His glory, i.e. the manifestation or representation of His glory, on account of the dominion over all things in the world committed to him (Genesis 1:16; Genesis 1:28; Genesis 3:16). As he is thus a visible representation of God, he is not to veil his head, the noblest part of his body, in the public worship of the Church.

the woman is the glory of the man Woman is not the manifestation or representation of the glory of God on earth, inasmuch as she is subject to man, and therefore cannot properly represent Him Who has no superior. But to all inferior beings she represents and is scarcely distinguishable from man, and therefore manifests and shares his superiority; reflects it, as the moon does the light of the sun, to use (and it may be said, to complete) the simile of Grotius here. See Alford's note.