And when the seas are flown away,
The oceans are exploded
when the oceans are gushed forth
And when the rivers are made to flow forth
And when/if the seas/oceans burst/over flowed
And the oceans explode and throw their water over the earth
And when the oceans are swept away
And when the oceans are made to flow forth and joined together
And when oceans (and rivers) will flood and overflow
And when the rivers are widely split up and made to flow forth (into canals)
And when the seas are burst forth (got dried up)