The imminent demise of the church has been predicted since the middle of the 18th century. This is the regular secular mantra if churchgoing declines. I could take you to plenty of churches that are full to bursting and new churches being built.
God's plan is not to abandon this world, the world which he said was "very good." Rather, he intends to remake it. And when he does he will raise all his people to new bodily life to live in it. That is the promise of the Christian gospel.
All our language about the future ... is like a set of signposts pointing into a bright mist ... the New Testament image of the future hope of the whole cosmos, grounded in the resurrection of Jesus, gives as coherent a picture as we need or could have of the future that is promised to the whole world, a future in which, under the sovereign and wise rule of the creator God, decay and death will be done away with and a new creation born, to which the present one will stand as mother to child.
As a newborn baby breathes and cries, so the signs of life in a newborn Christian are faith and repentance, inhaling the love of God and exhaling an initial cry of distress. And at that point what God provides, exactly as for a newborn infant, is the comfort, protection, and nurturing promise of a mother. "If God is our father, the church is our mother." The words are those of the Swiss Reformer John Calvin ... it is as impossible, unnecessary, and undesirable to be a Christian all by yourself as it is to be a newborn baby all by yourself.
But the voice goes on, calling us, beckoning us, luring us to think that there might be such a thing as justice, as the world being put to rights, even though we find it so elusive. We're like moths trying to fly to the moon. We all know there's something called justice, but we can't quite get to it.