God gave two major covenants which coalesced a society under His governance. One was given through Moses and one through Jesus of Nazareth.
Here is the heart of the covenants and the change:Hebrews 10:5 Wherefore when he cometh into the world, he saith, Sacrifice and offering thou wouldest not, but a body hast thou prepared me: 6 In burnt offerings and sacrifices for sin thou hast had no pleasure. 7 Then said I, Lo, I come (in the volume of the book it is written of me,) to do thy will, O God. 8 Above when he said, Sacrifice and offering and burnt offerings and offering for sin thou wouldest not, neither hadst pleasure therein; which are offered by the law; 9 Then said he, Lo, I come to do thy will, O God. He taketh away the first, that he may establish the second.
The one from Sinai required the offering of animals for cleansing and atonement; “sacrifice and offering.” This was under the umbrella of commandments written on stone. The cleansing and atonement of that covenant were sufficient to prepare the faithful for something greater. Thus, the superceding covenant came from Mt. Zion. One life was laid down for all people through all times; “a body thou has prepare me” – a covenant of transformation and redemption. The covenant from Sinai ultimately did not satisfy; “thou hast had no pleasure.” Whereas the Messiah’s sacrifice was completely fulfilling; “Lo, I come to do thy will O God.”
Before Jesus came, keeping God’s will had never been fully accomplished. Even righteous Daniel needed redemption. Jesus kept the Law; a lamb without spot. He also carried out something impossible for any other; the Creator bearing mankind’s blind animosity against Himself. This is the absolute of “loving the Lord thy God,” and “thy neighbor as thyself.” He brought reconciliation in the most complete way possible by keeping the Father’s will.
The will of God is that we should live and overcome the world. “By the which will we are sanctified through the offering of the body of Jesus Christ once for all.” (Heb.10:10)