As a noun:
* "The sunset painted the sky with a promise of a beautiful morning."
* "She made a promise to visit her grandmother every week."
* "The politician's promises were met with skepticism."
As a verb:
* "I promise to be there on time."
* "The doctor promised a full recovery."
* "The clouds promised rain."
In an idiomatic expression:
* "Don't promise the moon, just deliver what you can."
* "He's full of promises but never follows through."
* "The situation holds promise for a positive outcome."