>>>Sacrifices were only for unintentional sins as penalty for doing small unintentional sin only.
Example: you cought speeding on the freeway, officer will issue a citation for you as penalty for committing a violation.
You shot someone and he got killed, there is no citation there is a arrest, court, jury and jail time.
Can you imagine a poor man who can’t offer to sacrifice an animal for his sin? Is this justice a rich man can atone for his son but poor can’t!!!
God never command animals or human blood to atone for sins.
[Lev 5:7 KJV] And if he be not able to bring a lamb, then he shall bring for his trespass, which he hath committed, two turtledoves, or two young pigeons, unto the LORD; one for a sin offering, and the other for a burnt offering.
[Lev 5:11 KJV] But if he be not able to bring two turtledoves, or two young pigeons, then he that sinned shall bring for his offering the tenth part of an ephah of fine flour for a sin offering; he shall put no oil upon it, neither shall he put [any] frankincense thereon: for it [is] a sin offering.
And then:
[Lev 5:13 KJV] And the priest shall make an atonement for him as touching his sin that he hath sinned in one of these, and it shall be forgiven him: and [the remnant] shall be the priest's, as a meat offering.
In none of the cases does the instruction say the man can make an atonement for himself, but "the priest shall make an atonement for him", and that atonement will certainly be effective "it shall be forgiven him".
It's interesting that the priest actually shares in the sin offering--he eats part of it, and the other part is burnt. Sounds like both priest and God share the offering. Since Jesus became the high priest after the order of Melchizedek, it makes sense that He and God the Father share the offering, and the Leviticus passage prefigured it for them.