Christ was the covering sacrifice that was not available to the Israellites before him. By their sacrifices, they only had a shadow of the forgiveness that was to come through Jesus.
Christ was the covering sacrifice that was NOT AVAILABLE to the Israelites before him.......as you say.
That is quite a mouthful. Whose fault would that be? Christ was not available but the VERY SYSTEM of sacrifice God gave them WAS.
Now look at that word "covering". If you have a bloodstain on a white shirt would you think it would be best to remove the stain or to cover it?
This IS the point, by the way!
The silly, sanguinary slaughterhouse of "forgiveness" that was Israel's religious duty differed little from any pagan false religion!
In fact, child sacrifice was thought a great idea by primitive people too stupid and immoral to value life over superstition.
So, ironically---the method Almighty God comes up with is stunningly IDENTICAL: child sacrifice! God's own son! Sacrificed bloodily so that----WHO--will forgive mankind? Why none other than.......GOD, that's who!
This is simple-minded neanderthal logic writ large.
And why do you repeat it out loud even though it is moronic nonsense? You've answered neatly:
I was not taught the concept of grace growing up. If I am parroting anything, it is the Bible.
You have a duty to your own integrity and intellect to THINK about what you believe and not merely accept it when it makes no sense!!
Widen your reading to include NON-fiction.