Read 1 Corinthians 6:2 Using Other Translations
Do ye not know that the saints shall judge the world? and if the world shall be judged by you, are ye unworthy to judge the smallest matters?
Or do you not know that the saints will judge the world? And if the world is to be judged by you, are you incompetent to try trivial cases?
Don’t you realize that someday we believers will judge the world? And since you are going to judge the world, can’t you decide even these little things among yourselves?