NET

6 Then I saw standing in the middle of the throne and of the four living creatures, and in the middle of the elders, a Lamb that appeared to have been killed. He had seven horns and seven eyes, which are the seven spirits of God sent out into all the earth.

Darby

6 And I saw in the midst of the throne and of the four living creatures, and in the midst of the elders, a Lamb standing, as slain, having seven horns and seven eyes, which are the seven Spirits of God [which are] sent into all the earth:

KJV

6 And I beheld, and, lo, in the midst of the throne and of the four beasts, and in the midst of the elders, stood a Lamb as it had been slain, having seven horns and seven eyes, which are the seven Spirits of God sent forth into all the earth.