Leviticus 15:4

⁴ Every bed on which he lieth that hath the issue, is unclean: and every thing on which he sitteth, shall be unclean.

Dove

In Genesis 8:8-11, this signifies the truths and goods of faith in people who have developed spiritually. (Arcana Coelestia 870)

In John 1:32, this signifies regeneration and purification and the affections and thoughts relating to these processes. (True Christian Religion 144)

In Hosea 11:11, a dove signifies rational good.