Also don’t forget that with Israel, God instituted animal sacrifice for sins as a foreshadowing of Christ’s perfect sacrifice on the cross.
The Passover, for instance - a foreshadowing of Christ’s death on the cross - has each family kill and eat a lamb, Christ being the Lamb of God. In so doing and putting the blood of the lamb on the posts and lentils of the door - a picture of Christ and his blood spilled on the cross - death passed over them as it does believers today.
So again, forbidding to kill an animal and eat its meat is a doctrine straight from the pit of hell because it is self-righteous and denies the need for redemption by the spilled blood of Christ, the Lamb of God.
excellent references and points