Leviticus 14:45

⁴⁵ And they shall destroy it forthwith, and shall cast the stones and timber thereof, and all the dust without the town into an unclean place.

Turtles, and young pigeons

In Genesis 15:9 and Leviticus 12:6, this signifies the good of innocence; the young pigeon, interior good, and the turtle-dove exterior good. (Apocalypse Explained 314) They also represent exterior and interior spiritual things. (Arcana Coelestia 1727)