God's Kingdom is "present in its beginnings, but still future in its fullness. This guards us from an under-realized eschatology (expecting no change now) and an over-realized eschatology (expecting all change now). In this stage, we embrace the reality that while we're not yet what we will be, we're also no longer what we used to be.
Timothy KellerJesus lost all his glory so that we could be clothed in it. He was shut out so we could get access. He was bound, nailed, so that we could be free. He was cast out so we could approach. And Jesus took away the only kind of suffering that can really destroy you: that is being cast away from God. He took so that now all suffering that comes into your life will only make you great. A lump of coal under pressure becomes a diamond. And the suffering of a person in Christ only turns you into somebody gorgeous.
Timothy KellerIn Ephesians 5, Paul shows us that even on earth Jesus did not use his power to oppress us but sacrificed everything to bring us into union with him. And this takes us beyond the philosophical to the personal and the practical. If God had the gospel of Jesus's salvation in mind when he established marriage, then marriage only 'works' to the degree that approximates the pattern of God's self-giving love in Christ.
Timothy Keller