We go from dust to life, then back to dust. But there’s another change coming.
25) For I know that my redeemer liveth, and that he shall stand at the latter day upon the earth:
26) And though after my skin worms destroy this body, yet in my flesh shall I see God:
27) Whom I shall see for myself, and mine eyes shall behold, and not another; though my reins be consumed within me.
When mankind first sinned, one of the consequences was that he would surely die. Our bodies were not originally designed to cease functioning. Neither is our soul / spirit ever depicted in the Bible as a finite thing. We are meant to continue in the presence of God eternally. This is why God put the concept of eternity in our very souls, even though when we pause to think on it we have a hard time grasping the very experience of being an eternal being.
Although this plan of our living eternally with God was disrupted by sin and death, in the Last Day death itself will be destroyed. (I Cor. 15:25-26) All human bodies which have returned to dust, though they be eaten by worms, or lost in the sea, or torn by wild beasts, or murdered and hidden… All bodies shall return to life once more, (Rev. 20:11-15) to everlasting life before God, or an eternal existence in the lake of fire (a death beyond death).
Jesus’ body was an earthly body. And it was this body which was resurrected and is now our surety that as he now is, so shall we be.
“O Death, where is thy sting? O grave, where is thy victory? The sting of death is sin; and the strength of sin is the law. But thanks be to God, which giveth us the victory through our Lord Jesus Christ.” (I Cor. 15:55-57