The sacrifice at Calvary is a Passover sacrifice.
The sacrifice takes place at Passover; the sacrifice is referred to as a lamb; the sacrifice is described as being without blemish; the lamb is killed in order to protect the faithful from the righteous vengeance of Jehovah God, the blood is spilled to avert this vengeance (in the original Passover, the blood was literally applied to the doorways of the faithful, to mark the home as exempt from the act of judgement); the lamb is bodily consumed.
Because it follows the pattern of the Passover sacrifice, the mechanism by which 'salvation' is achieved can be derived - it's NOT a sacrificial goat (scapegoat) sent into the wilderness with the sins of man attributed to it, it's a pure lamb sacrificed to avert judgement. Your sins aren't removed, they are ignored.
This is also why Christians need to participate in the Eucharist. If you don't eat the flesh of the lamb, the ritual is not complete.





