Lately I've been studying different views on The Atonement. There are so many problems with any view, most notably to me is the problem of human sacrifice. That's condemned in the Bible so why is it considered the best thing that ever happened for us? Something wrong there.
Then there's the issue of imputed guilt, something else scripture condemns - the punishment of an innocent man instead of the guilty. He became sin who knew no sin - is that from scripture or just a song? It is in the Bible but maybe not phrased that way exactly. It doesn't say he took our guilt, it says he became sin.
Then the sacrifice part, he made the sacrifice instead of being sacrificed, it's said. But Isaiah writes "it pleased YHWH to bruise him...", that it was asked of him. That IS different from requiring it.
Without the shedding of blood, there is no remission of sin - that means it wasn't paying a debt; remission is forgiving. If you forgive someone of their debt, that means you don't require its payment.
Still a very confusing subject to me, I think it has way more to do with Yeshua's LIFE. Still, I will celebrate on Passover!