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Jesus came to establish the kingdom of God as a radical alternative to all versions of the kingdom of the world, whether they declare themselves to be "under God" or not.

Gregory A. Boyd (2007). “The Myth of a Christian Nation: How the Quest for Political Power is Destroying the Church”, p.102, Zondervan
Jesus came to establish the kingdom of God as a radical alternative to all versions of the kingdom of the world, whether they declare themselves to be under God or not.