As I write my paper about what Revelation chapter 5 verse 5 means in light of verse 6-- essentially asking the question what does a slain lamb have to do with a conquering lion--I ran across an interesting sidebar that I do not have time to research in the moment. Here is the summation of my sidebar:
I think it is important to note the parallel between the lamb horned earth beast and the lion mouthed sea beast found in the 13th chapter of Revelation. Both lion roar/fangs and lamb horns hold authority, but of a violent/coercive kind. Perhaps these things could help understand the Lamb/Lion of Revelation 5. Talk about finding God in the form of the opposite!