Paul uses this question to show that the arguments against the gospel are not valid, since the Jews believe that God will judge all people. Alternate translation: "We all know that God will in fact judge the world!" (See: [[rc://en/ta/man/translate/figs-rquestion]])
The "world" is a metonym for the people who live in the world. Alternate translation: "anyone in the world" (See: [[rc://en/ta/man/translate/figs-metonymy]])