Why did the big three gods swear never to have any more children?

The big three gods—Zeus, Poseidon, and Hades—swore never to have any more children due to the prophecy that their offspring could potentially overthrow them, just as they had overthrown their father, Cronus. They feared that another powerful being could rise to challenge their rule, leading to chaos and conflict among the gods. To maintain their power and stability, they decided to refrain from further procreation. This oath helped ensure that their reign remained unchallenged and that the balance among the divine remained intact.