Jesus of the Gospel of Thomas.
The kingdom is within you and it is outside you.
A Coptic book buried until 1945. If they tell you the kingdom is in the sky, the birds will get there first. When you know yourselves, you will be known. If you do not, you live in poverty, and you are the poverty. This is not church copy. It is the same teaching as the Upanishads and the Hermetica.