We can know just by looking at what God has made that He never created things to stay the same. Everything revolves, moves, grows, matures, all in the course of His ordination of time. "There is a time for everything, and a season for every activity under heaven: a time to be born and a time to die, a time to plant and a time to uproot, a time to kill and a time to heal, a time to tear down and a time to build, a time to weep and a time to laugh, a time to mourn and a time to dance, a time to scatter stones and a time to gather them, a time to embrace and a time to refrain, a time to search and a time to give up, a time to keep and a time to throw away, a time to tear and a time to mend, a time to be silent and a time to speak, a time to love and a time to hate, a time for war and a time for peace" (Ecc. 3:1-8).  This dispensation in which we live concerns grace for the human in the flesh, but we know that another time is coming.

"But someone may ask, 'How are the dead raised? With what kind of body will they come?' How foolish! What you sow does not come to life unless it dies. When you sow, you do not plant the body that will be, but just a seed, perhaps of wheat or of something else. But God gives it a body as He has determined, and to each kind of seed He gives its own body. All flesh is not the same: Men have one kind of flesh, animals have another, birds another and fish another. There are also heavenly bodies and there are earthly bodies; but the splendor of the heavenly bodies is one kind, and the splendor of the earthly bodies is another. The sun has one kind of splendor, the moon another and the stars another; and star differs from star. So will it be with the resurrection of the dead. The body that is sown is perishable, it is raised imperishable; it is sown in dishonor, it is raised in glory; it is sown in weakness, it is raised in power; it is sown a natural body, it is raised a spiritual body" (1 Cor. 15:35-44). The Bible tells us many times that Christians are heirs of the kingdom of God. The verses in I Corinthians 15 go on to say, "I declare to you, brothers, that flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable" (50).  We must be changed into the stuff of the eternal children of God--glorified and imperishable.

"When I was a child, I thought like a child, I reasoned like a child. When I became a man, I put childish ways behind me. Now we see but a poor reflection as in a mirror; then we shall see face to face. Now I know in part; then I shall know fully, even as I am fully known" (I Cor. 13:11-12).  There is a spiritual maturing that takes place from the time of our salvation to the time we are complete in God. What an encouragement!  And we don't have to go through it alone. "For we do not have a high priest who is unable to sympathize with our weaknesses, but we have one who has been tempted in every way, just as we are--yet was without sin" (Heb. 4:15); and we are assured that "He who began a good work in [us] will carry it on to completion until the day of Christ Jesus" (Phil. 1:6).

C. S. Lewis's demon character "Screwtape" describes the Christian's change to immortality in this way:

"There was a sudden clearing of his eyes . . . as if a scab had fallen from an old sore, as if he shuffled off for good and all a defiled, wet, clinging garment . . . how naturally--as if he'd been born for it--the Earth-born vermin entered the new life. How all his doubts became, in the twinkling of an eye, ridiculous . . . All horrors have followed the same course, getting worse and worse and forcing you into a kind of bottleneck till, at the very moment when you thought you must be crushed, behold! you were out of the narrows and all was suddenly well. The extraction hurt more and more and then the tooth was out. The dream became a nightmare and then you woke. You die and you die and then you are beyond death . . . And as he saw you (demon), he also saw Them (angels) . . . this thing of earth and slime could stand upright and converse with spirits before whom you, a spirit, could only cower. . . He had no faintest conception till that very hour of how they would look, and even doubted their existence. But when he saw them he knew that he had always known them and realized what part each one had played at many an hour in his life when he had supposed himself alone, so that now he could say to them, one by one, not 'Who are you?' but 'So it was you all the time.' All that they were and said at this meeting woke memories. The dim consciousness of friends about him which had haunted his solitudes from infancy was now at last explained; that central music in every pure experience which had always just evaded memory was now at last recovered. Recognition made him free of their company almost before the limbs of his corpse became quiet. . . He saw not only Them; he saw Him. This animal, this thing begotten in a bed, could look on Him. What is blinding, suffocating fire to you (demon) is now cool light to him, is clarity itself, and wears the form of a Man" (The Screwtape Letters, XXXI, New York: Simon and Schuster, 1961. 109-111). 

"How great is the love the Father has lavished on us, that we should be called children of God! And that is what we are! The reason the world does not know us is that it did not know Him. Dear friends, now we are children of God, and what we will be has not yet been made known. But we know that when He appears, we shall be like Him, for we shall see Him as He is" (I John 3:1-2). Amen

Just a thought--When Jesus returns, why will the dead be raised first? --Because they have 6 feet further to go.