Overcomer seems to be drawing the idea of animal sacrifices providing only temporal covering of sin, from Hebrews 10:4:Overcomer wrote:
People in Old Testament days sacrificed animals for their sins. However, those sacrifices did not eradicate their sins. They only covered them temporarily. That meant people had to perform sacrifices over and over. And the animals sacrificed had to be unblemished.
But the OT made clear that animal blood actually cleanses:4 For it is impossible for the blood of bulls and goats to take away sins. (Heb 10:4 NAS)
It is true that other parts of the OT indicate a desire to move away from the emphasis on blood atonement. But that doesn't change the fact that Leviticus 16 teaches actual cleansing and gives no sign whatsoever that the cleansing was in anyway incomplete or temporal.29 "And this shall be a permanent statute for you: in the seventh month, on the tenth day of the month, you shall humble your souls, and not do any work, whether the native, or the alien who sojourns among you;
30 for it is on this day that atonement shall be made for you to cleanse you; you shall be clean from all your sins before the LORD.
(Lev 16:29-30 NAS)
So Hebrews 10 contradicts Leviticus 16.
The Hebrews author got even more wrong:
22 And according to the Law, one may almost say, all things are cleansed with blood, and without shedding of blood there is no forgiveness. (Heb 9:22 NAS)
The underlined portion is false, God took away David's sin of adultery with Bathsheba, in a context that neither expresses nor implies it was done through animal blood:
If there is no forgiveness without shedding of blood, then God cannot take away David's sin apart from shedding of blood to atone for it.13 Then David said to Nathan, "I have sinned against the LORD." And Nathan said to David, "The LORD also has taken away your sin; you shall not die.
14 "However, because by this deed you have given occasion to the enemies of the LORD to blaspheme, the child also that is born to you shall surely die." (2Sa 12:13-14 NAS)
Yes, some crazy fundies will insist god took the sin away with a view toward the yearly blood atonement, but normal people have limits to how much they will atomize fables before they finally lose interest in speculating about the nature of Cinderella's lizard-footmen.