Moses refers us back to chapter one, and the waters above the firmament, in the atmosphere above, the great vapour layer that was described at the creation of the world, and the subterranean water. And the waters seem to come from both directions.
It is the Lord who decides that we have lived long enough in his world in a state of unbelief, and says of the tree that represents our life, ‘Cut it down; why cumbereth it the ground?’ All those outside were sealed out by the hand of God. It is a figure; it is a type of judgment too. There will be no surviving God’s judgment if we remain obdurate against him. His salvation is perfect, and his judgment will be perfect also.
Bishop Hall says, ‘This difference is strange: I see the savagest of all creatures, lions, tigers, bears, by an instinct from God, come to seek the ark, men I see not; reason once debauched is worse than brutishness.’