Firmament
The firmament of heaven represents mutual love. The firmament, as in Genesis 1, signifies the internal man.
(Referencat: Arcana Coelestia 24)
Face of the ground
In Genesis 8:8, this signifies what people in the church have in them, the word ground being used because this is a person's first stage in becoming a church.Later, the face of the ground being dried up in Genesis 8:13 signifies regeneration when falsities no longer appeared.
(Referencat: Arcana Coelestia 898, Genesis 13)
