'Angels' in the Bible

For, I think, God has exhibited us apostles last of all, as men condemned to death; because we have become a spectacle to the world, both to angels and to men.

Do you not know that we will judge angels? How much more matters of this life?

Therefore the woman ought to have a symbol of authority on her head, because of the angels.

If I speak with the tongues of men and of angels, but do not have love, I have become a noisy gong or a clanging cymbal.