In waiting for Jesus to return, we are waiting for a new heavens and a new earth. But we are not only waiting. We are also receiving manifestations of that new creation right now. In fact, we are becoming manifestations of it. The Apostle Peter calls us to be diligent in becoming people without spot or blemish and at peace. In other words, be diligent to let the new creation manifest in us. The reason Jesus has not returned, the reason people are left in this place to live these lives, is for the very purpose of becoming new creation ready. God is patiently waiting for us to receive his new life, to grow up into all that he made us to be, to let all the false things fall away. He is waiting for us to be people who can run with him. And his patience is for our salvation.