When the slaughtered Lamb is seen "in the midst of" the divine throne in heaven (5:6; cf. 7:17), the meaning is that Christ's sacrificial death belongs to the way God rules the world.
When the slaughtered Lamb is seen "in the midst of" the divine throne in heaven (5:6; cf. 7:17), the meaning is that Christ's sacrificial death belongs to the way God rules the world.