This means to raise him up from his bed, or to make him recover from his disease. Alternate translation: "make me well" (See: [[rc://en/ta/man/translate/figs-idiom]])
The writer speaks of revenge on his enemies as if it were paying to them what he owes. Alternate translation: "so that I may take revenge on them" (See: [[rc://en/ta/man/translate/figs-metaphor]])