(idiom) the way of heaven is to reward those who work hard, meaning that one's efforts will eventually pay off

Heaven is fair and shows no favoritism; the natural law is unbiased and always rewards the virtuous

Heaven's way goes in a cycle; specifically that evil deeds eventually return to punish the doer; karma

the way of heaven is selfless and shows no favoritism; divine providence is fair to all

literally means that heaven's justice is vast and loose but never lets a criminal escape; used to describe how a lawbreaker will eventually be caught and punished by the law

The natural law of cause and effect or cosmic justice; the idea that good and evil actions will eventually meet with their deserved reward or punishment.