'Covered' in the Bible

Something like a sea of glass, similar to crystal, was also before the throne. Four living creatures covered with eyes in front and in back were in the middle and around the throne.

Each of the four living creatures had six wings; they were covered with eyes around and inside. Day and night they never stop, saying:Holy, holy, holy,Lord God, the Almighty,who was, who is, and who is coming.

Then the fifth angel poured out his bowl on the throne of the beast so that darkness covered his kingdom, and people began to bite their tongues because of their pain.

So he carried me away in the Spirit to a desert. I saw a woman sitting on a scarlet beast that was covered with blasphemous names and had seven heads and 10 horns.

and he is arrayed with a garment covered with blood, and his name is called, The Word of God.