You keep asking wacked out strawman questions that have no relation to reality.
Torah describes how sinful man has to live in the future hope of redemption. It is the body of the contract under which we all endure to this day. It is “instruction in Righteousness.”
No Hebrew was ever led to believe that Torah could save them. They always knew that their confession of transgression of Torah and sin offering were dependent on belief in their future redemption by a sinless man. That is what Abraham and Isaac’s trip up Mount Moriah was all about, why don’t you read up on it? God provided the lamb then, and he provided his sinless son as the ultimate and fully effective ‘lamb’ at Calvary.
We no longer have to make a sin offering, but we still must endure in faith to our end. The main difference now is that his blood has been shed, and it should be easier to continue in faith now. It was the promise of grace for Adam, and it is the same for us now.
The blood of sheep and goats has never had the power to justify the sinner.
But I'm not asking how they thought they were going to get into Heaven. I'm asking what they thought the Messiah would do. It's clear from the Old Testament prophecies that they thought the Messiah would save Israel from foreign rule and invasion.