'Seven Spirits of God' in the Bible

"To the minister of the Church at Sardis write as follows: "'This is what He who has the seven Spirits of God and the seven stars says. I know your doings--you are supposed to be alive, but in reality you are dead.

Out from the throne there came flashes of lightning, and voices, and peals of thunder, while in front of the throne seven blazing lamps were burning, which are the seven Spirits of God.

Then, midway between the throne and the four living creatures, I saw a Lamb standing among the Elders. He looked as if He had been offered in sacrifice, and He had seven horns and seven eyes. The last-named are the seven Spirits of God, and have been sent far and wide into all the earth.