This is a metaphor which means they give back evil in exchange for the good they have received. Alternate translation: "In return for my doing good things for them, they do evil things to me" (See: [[rc://en/ta/man/translate/figs-metaphor]])
These abstract nouns can be stated in other forms. Alternate translation: "evil things ... good things" (See: [[rc://en/ta/man/translate/figs-abstractnouns]])