Arcana Coelestia #7547
7547. 'And you would be cut off from the earth' means that thus there would be no communication any longer through things of the Church. This is clear from the meaning of 'being cut off', when said of things of the Church, as being separated, and when they are separated - that is, when there is no longer any communication or contact with heaven through those things of the Church - that person sinks into hell, which is 'being cut off', see above in 7545; and from the meaning of 'the earth' as the Church, dealt with in 662, 1067, 1262, 1733, 1850, 2117, 2118 (end), 2571, 2928, 3355, 4535, 4447, 5577.
Isaiah 24:18-21
18
It will happen that he who flees from the noise of the fear will fall into the pit; and he who comes up out of the midst of the pit will be taken in the snare; for the windows on high are opened, and the foundations of the earth tremble.
19
The earth is utterly broken. The earth is torn apart. The earth is shaken violently.
20
The earth will stagger like a drunken man, and will sway back and forth like a hammock. Its disobedience will be heavy on it, and it will fall and not rise again.
21
It shall happen in that day that Yahweh will punish the army of the high ones on high, and the kings of the earth on the earth.