Jesus' Return

It might be easy to think that because Christ died on the cross and ascended, because he said it is finished that there's no reason for him to return. First, he said, "I'm coming back," so there's the fact that he said he's coming back - period - that we have to reckon with. Now this other part of it, though, is he's coming back as king; he's coming back to reign. And so, this is how God's rule is going to be established on the earth in the end. So why does he need to come back? He's coming back to rule and to reign and for God's creation to be belonging fully to him in an undisputed fashion.