Here "hand" represents power, and "hand ... will come against him" represents people attacking him. The abstract noun "poverty" can be expressed with the adjective "poor." Alternate translation: "everyone who is in poverty will attack him" or "everyone who is poor will attack him" (See: [[rc://en/ta/man/translate/figs-metonymy]] and [[rc://en/ta/man/translate/figs-abstractnouns]])