Christ’s kingdom, as He told Pilate, is not of this world (and will never be). The social kingship of Christ is not the same as the heretical, Protestant “messianic kingdom”, which no Church Father or Apostle ever taught. The social kingship of Christ will be fulfilled through the Church and the papacy, before the end of the world, as St Paul tells us, when there will be “one Lord, one Faith, one Baptism.”