Studie
23 For Jehovah will pass through to smite the Egyptians; and when he seeth the blood upon the lintel, and on the two side-posts, Jehovah will pass over the door, and will not suffer the destroyer to come in unto your houses to smite you.
'Old waste places' signify the celestial aspects of faith.
(Odkazy: Arcana Coelestia 613)