[JoeV1]

The puzzling part of this is that Earth's oceans, and now probably the water that was on Mars, both date from this period.

"Where did it come from? The only reasonable answer is comets.

It is reasonable. Who first proposed comets as the source of Earth's water?

Any possibility God had anything to do with this?

Just thought I'd ask.

[ngc6656]

Any possibility God had anything to do with this?

I don't recall reading anywhere that God proposed comets as the source of planetary water, but because it is a marvelous idea it is within the realm of possibility.