birds
The bird slain, and the live bird, dipped in blood and released, present the two aspects of salvation in (Romans 4:25) "delivered for our offences, and raised again for our justification."
Related Commentaries of Leviticus 14:4
Leviticus 14:4
4 Then shall the priest command to take for him that is to be cleansed two birdsa alive and clean, and cedar wood, and scarlet, and hyssop: