In Exodus 24:10 and Lamentations 4:7, the body of heaven here signifies truth in its whole complex. (Arcana Coelestia 9408, Apocalypse Explained 364[5])

In Matthew 6:25 and Luke 24:23, this signifies the good of love from the will. (Apocalypse Explained 759[16])

In Luke 17:37, this signifies the area of the spiritual world that includes everybody–both good and evil. The eagles or vultures signify people who are in truths or falsities, and so truly intelligent or falsely so. (Apocalypse Explained 281[9])