'Seven Spirits of God' in the Bible

To the Angel of the Church in Sardis write:-- "These are the words of him who has the seven Spirits of God and the seven stars;--I know your life, and that men say of you that you are living, though you are dead.

Out from the throne 'come flashes of lightning, cries, and peals of thunder'! There are seven torches burning in front of the throne, which are the seven spirits of God;

Then, within the space between the throne and the four Creatures, and in the midst of the Councillors, I saw, standing, a Lamb, which seemed to have been sacrificed. It had seven horns and seven eyes. (These eyes are the seven Spirits of God, and they are sent into all the world.)