Torah Portion: Vayikra
He shall nip its head at its nape, but not separate it (Vayikra 5:8).
It is a negative commandment that when a kohen offers a sin-offering of fowl, he may not separate the head from the body after nipping it, as it is written, He shall nip its head at its nape, but not separate it (Vayikra 5:8). “Nipping” is when the kohen wedges his fingernail opposite the bird’s neck, into the bone known as the “nape bone” and breaks the bone with his fingernail. He also severs the organs of the throat, or at least the majority of one of them. In the case sin-offering of fowl this is its form of slaughtering. But the kohen may not completely sever the head from the body, and it is about this law that Scripture states He… may not separate it.
We have already discussed, in connection with the construction of the Temple, that we are incapable of explaining any of the details of the offerings — even on the simplest level — so we must suffice with a basic understanding of the concept of bringing offerings in general. But we may suggest a plain-meaning explanation for this mitzvah. The sin-offering from fowl is the sacrifice of a poor person, and [the mitzvah] is a lesson to expedite the needs of a poor person and provide for him as quickly as possible. For this reason his offering does not require a proper shechitah-slaughtering, so the kohen will not need to delay at all while securing a knife and examining it for blemishes, and in the meantime the poor person will be forced to wait take off from his work. Another way speed is emphasized here is by saying that the kohen begins “opposite the neck” because that is the side most readily in position and he will not have to turn the neck towards the side with the organs of the neck.
Another lesson alluded in the requirement of nipping the turtledove opposite its neck, is that the Jewish people is compared to a turtledove and it comes to teach us that we should not be stiff-necked.
The idea of not completely severing the head from the bird’s body is that this is the proper way to enhance the offering. For when the head remains attached it is more dignified, and it is proper that we make the poor man’s offering as dignified as possible. His poverty is bad enough; we do not have to add to that and degrade the appearance of his offering.
All of this stems from the foundation we laid out earlier, that among the roots of all the commandments regarding offerings is the aim of improving our behavior through the deeds we do. These methods are necessary because since man is a physical being, he cannot vividly grasp anything without physical actions.
This mitzvah applies when the Holy Temple stands, to kohanim and to any person — anyone who severs the head of a fowl-sin-offering receives lashes.

