Possible meanings are 1) "cut off" is a metaphor that means to destroy. Alternate translation: "I will destroy anyone who enters it or leaves it" or 2) "cut off" is a metaphor that means to stop someone from doing something. Alternate translation: "I will make it so that people do not travel back and forth through it" (See: [[rc://en/ta/man/jit/figs-metaphor]])