In Exodus 9:16, this signifies that communication with heaven would yet remain, and that they would pass through states, in order, i.e., be vastated by successive degrees. (Arcana Coelestia 7541, 9548)

In Deuteronomy 18:18, this signifies that the Lord was represented by Moses, as well as by Abraham, Isaac, Jacob, David, and many more, and that He was expected to come in person. (Arcana Coelestia 2534, Apocalypse Explained 746[12])