These phrases refer to people who have these qualities. Alternate translation: "poor people ... humble people ... wicked people" (See: [[rc://en/ta/man/translate/figs-nominaladj]])
The word "earth" here represents the people on earth. Striking them with the rod of his mouth represents judging them, and that judgement will lead to punishment. Alternate translation: "He will judge the people of the earth, and they will be punished" (See: [[rc://en/ta/man/translate/figs-metonymy]])
The "breath of his lips" represents him judging them. Alternate translation: "he will judge wicked people, and they will be killed" (See: [[rc://en/ta/man/translate/figs-metonymy]])