Consequently, when Christ came into the world, he said, “Sacrifices and offerings you have not desired, but a body have you prepared for me; in burnt offerings and sin offerings you have taken no pleasure. Then I said, ‘Behold, I have come to do your will, O God, as it is written of me in the scroll of the book.'” When he said above, “You have neither desired nor taken pleasure in sacrifices and offerings and burnt offerings and sin offerings” (these are offered according to the law), then he added, “Behold, I have come to do your will.” He does away with the first in order to establish the second. And by that will we have been sanctified through the offering of the body of Jesus Christ once for all. Hebrews 10:5-10
God did not desire animal sacrifices from the Israelites. What He wanted was their obedience. The sacrifices were more to show the Jews that their sins came at a cost. To give the best from their flock was a huge sacrifice. But the blood of animals is not important to God. All around the Israelites other culture sacrificed both animals and humans. But even the blood of a person was not what God desired. Every person fell short of the perfection God demands. Even the unblemished animals fell short.
God knew this and He had a plan ready for the proper time. God the Son would come down to earth to live as we do and then after living a sinless life willing sacrifice Himself to pay the price for our sins. Only this perfect sacrifice could pay the price for all our sins past, present and future.
Why wait? I think it was to give the Jews enough time to come to terms with the fact that all their sacrifices over the centuries were not enough. They needed to come to believe that they needed something, someone, more. They needed to Messiah. But more than that they needed a Messiah willing to pay the ultimate price to bring them back in reconciliation with God. Even with all the time God allowed them most still refused to abandon the old ways and accept the new way, Jesus.
Today, even with almost two thousand more years behind us many still cannot bring themselves to accept what Jesus did for them. There within their grasp lies salvation but they are unable to overcome their disbelief to grab it.
Have a blessed day,