For it is impossible for the blood of bulls and goats to take away sins. - Hebrews 10:4
I'm curious where in the old testament this can be confirmed because one thing I have thought about when discussing christianity and have a question depending on what it is I sometimes ask myself if it lines up with the old testament bassically like how the old testament points to Christ. I'm curious where in the old testament hebrews 10:4 can be confirmed along with the idea of salvation being through faith alone.
I'd encourage you to look to what David says in Psalm 51.
The point of the sacrificial system wasn't that by killing and bleeding an animal one could expunge their sins; the point of the sacrificial system had several purposes:
1) Animal sacrifice was a common practice among ancient people, God took a common human practice and gave it a special significance among the Jewish people, as a way to point to the seriousness of sin and the relationship between sin and death.
2) In the New Testament we see that there was an even deeper and more important point: The sacrificial system points to Jesus, the One who by His life, death, and resurrection brings peace between God and man.
The blood of bulls and goats couldn't take away sin. What is needed to address the problem of sin isn't the blood of animals, but forgiveness and mercy, and the defeat of the curse of death and bringing wayward people back into a restored life with God. That's what Jesus has done.
We can see time and again how the sacrifices of animals didn't put an end to sin. After the flood and there is dry land, Noah builds an altar to God and offers sacrifice. Immediately after this we see Noah passed out drunk and naked in his tent, Noah's son Ham sees Noah in this state and it brings Noah shame; Noah's response is to place a curse on Ham's son Canaan. No sooner than the flood waters recede and God offers a profound sacrifice does the problem of sin immediately rise its ugly head up.
In the Old Testament it was required that every year the High Priest step beyond the veil into the Holy of Holies to offer an offering of blood upon the Mercy Seat on top of the Ark of the Covenant, between the cherubim, as a propitiation for the sins of the nation; and every year a goat was sent out into the wastelands to symbolically carry the people's sins out into the wasteland.
This was every year, year after year. Sin was never dealt with, but there was a yearly reminder that the nation was full of sin. And it required the High Priest to enter into the most sacred and intimate location of the Divine Presence and render sacrifice.
Hebrews goes on to tell us that this is why we have such a Great High Priest in Jesus; who offers Sacrifice once and for all. Not yearly, but once and final; and His Sacrifice of Himself actually accomplishes what the old sacrifices pointed toward: The need of atonement, reconciliation, of restoration.
Jesus fulfills the whole point of the former things. In Him the vocations of Temple, High Priest, Israel, Sacrifice, Paschal Lamb, and Davidic King are found. Jesus is God's Temple, Jesus is the Great High Priest, Jesus is the Suffering Servant, Jesus is the Sacrifice, Jesus is the Lamb of God who takes away the sins of the world, Jesus is King Messiah who has received kingdom, power, and authority and is seated on an everlasting throne.
-CryptoLutheran