Belief in Jesus, His life, sacrifice, & resurrection is the New Covenant. Jesus was born from the line of Judah, the bloodline of King Solomon & King David. He was a Jew. Through His life & ministry on earth, He was sinless. He resisted the devil 3 times starving in the wilderness. He did not sin, but was persecuted and crucified nevertheless. He was the only one who fulfilled the Law. Explaining Matthew 5:24, he didn’t come to destroy the Law, but He fulfilled it. He was the only one who lived a perfect life, therefore fulfilling the Law.
God’s new covenant was that believing that Jesus was His Son, and His Son died a perfect man, fulfilling His Law, that whosoever believes in His Son, will be saved when He judges us all.
Blessed and holy is he who has part in the first resurrection. Over such the second death has no power, but they shall be priests of God and of Christ, and shall reign with Him a thousand years. (Revelation 20:6 NKJV)
Through Jesus He established a new covenant with us. That which is the Grace of God. This is the New Covenant, the New Testament, and the current age we live under today.
The thing about this new covenant that the Apostle Paul explained was a mystery (Colossians 1:24-29) was that this covenant was not just for the Jews, but also for the Gentiles. Before this time, the only one that spoke to the one God was Israel. Remember the rest of the land were pagans, following the mystery religion of Babylon. The Jews were His chosen people and He only had the covenant with them. The new covenant from God through His Son was for everybody, the Jews and the Gentiles. A Gentile was anyone who was not a Jew.
The Grace of God is a gift that could never be repaid. We were born sinners because of Adam. There was nothing we could ever do to make things right with God. We were born into sin. We all deserve condemnation, going to hell. The gift of God is that by accepting God’s gift through His Son, we become right with Him and we know Him. It’s something we never could get by our own works and nothing that we deserve. His grace provides the promise. His grace provides us having access to the Holy Spirit and having Jesus right in us.
This is what Grace is. It’s given freely and has nothing to do with works, that way no one can boast and show off how they’re doing so much more for God. Making that the reason why they’re blessed (Ephesians 2:9). We all have the same gift. The indwelling of the Holy Spirit, so one can’t put their blessings on their works.
The Grace of God is the new Covenant. The covenant in which we currently operate our lives through right now. Only the Jews can say that they have another covenant with the One God. So they would still be living under the Law, however you don’t hear often of many mainstream Jews performing animal sacrifices and the like. They too are boggled down in tradition, which is why they weren’t able to see their prophesied Messiah when He was present with them. Tradition.
Grace is the ultimate gift from God and should be totally understood by every Christian. This is the basis of the Christian doctrine and if it is not properly taught, understood, and accepted, it leaves the Christian partially living through grace and living through the Law. It quenches the Holy Spirit.