This is a lovely altar piece at my local Anglican Church.
With some words of Christ on it!
Another saying of Christ's is -
"MY KINGDOM IS NOT OF THIS WORLD!"
In my opinion, a clear implication of these words is that - his "kingdom" is a spiritual and not a political kingdom!
I think these words of Christ just mentioned compromise the Christian Church that this lovely altar
is found in.
This is the case because the political Monarch and head of the political state in which it is found - the "U.K." - is also the spiritual head and "Supreme Governor" - to the exclusion of anyone else - of the Church in which this is found.
......................
Queen Elizabeth II and her kingdom are very much "of this world" - as you may realize when you vote for an M.P. to serve the Crown in Parliament!