Are you saying that jets of water from earth created the comets in the solar system? Perhaps you're referring to your personal religious belief, and not scientific fact. Is that it?
I would think there is not enough water on Earth to account for even a small fraction of the comets in the Oort cloud. Maybe someone in the know can answer that.
There is a computation spreadsheet on it available to those that enjoy scepticism, but anyway, Earth is the only possible source of the water, since Earth is coplanar to the orbits of all of them. (Kepler worked that out hundreds of years ago)