Isaiah 43:15

"And write [this] to the angel of the church at Philadelphia: These are the words of Him who is holy and true, [and] who possesses the key [i.e., the power and authority] of King David, [and] who opens [a door] which no one will close, and who closes one that no one will open:

Then the King will say to those at His right side, 'You who are blessed by my Father, come and receive the kingdom which has been prepared for you since the creation of the world,