Here "pour out my fury" represents punishing the people because of his great anger. Alternate translation: "For I will act in great anger against Pelusium" or "Because I am so angry, I will punish Pelusium severely" (See: [[rc://en/ta/man/jit/figs-metaphor]])
Here "cut off" represents killing the people. Alternate translation: "kill the very large number of people in Thebes" (See: [[rc://en/ta/man/jit/figs-metaphor]])