I think the Bible and the Christian salvation are not always understood. To listen to today's preaching, one might conclude that the Gospel of the Kingdom has to do with helping people get to Heaven. Although neither the Old Testament nor the New Testament talk about getting people to Heaven, nevertheless this impression persists.
Actually the theme of the Bible is the conflict between good and evil.
In the beginning of mankind, God pronounced His creation "very good."
Then evil entered. But the evil did not originate with the man and woman or the earth, but came from Heaven. Therefore making the central idea of the Bible that of bringing people from the earth to Heaven is not realistic.
The actual theme of the Bible is sin and rebellion, and what God is going to do about it.
God has a long-range plan. God's plan is to create a Kingdom in which His will is done and all sin and rebellion are removed for eternity. The Kingdom consists of human beings whom God has created in response to the rebellion of the angels.
The Kingdom is both internal and then external. The Kingdom of God is conceived and formed in human beings as Christ is conceived and formed in them. It's external dimension will be revealed when the Lord returns with the saints in whom the internal Kingdom has been formed.
Thus God is creating His will in people, so they can maintain Paradise on the earth once God restores it.