Literal:
* Impossible: This is the most common meaning. It refers to a physically impossible feat, often used metaphorically to describe something that is highly unlikely or unattainable.
Figurative:
* Exceptional Ability: It can also be used to describe someone with extraordinary talent or ability. This meaning stems from the biblical story of Jesus walking on water, where he is seen as possessing divine power.
* Miraculous Achievement: It can also be used to describe a remarkable or impressive accomplishment, something that seems impossible but is actually achieved.
In summary: "Walk on water" usually means something is impossible, but can also symbolize exceptional ability or a miraculous achievement.