Because of this oath, Jesus has become the guarantor of a better covenant. Hebrews 7:22
In the beginning God made a covenant with the Jewish people. A covenant through their Father Abraham that they would be his people forever and give them eternal life. However the problem was that mankind are sinners. And because of their continual sin and rebelliousness, they continually angered God and provoked him to say “They will no longer receive my rest” (Hebrews 3:11)
But God had a better covenant in mind, not just for the Jewish people but the entire world. A better covenant because that covenant came through the perfect blood of Jesus Christ, that took on the wages of everyone’s sins.
Jesus became God in the flesh and took on all of our imperfections and transgressions so that we might be perfect in the sight of our Heavenly Father. Nobody else could accomplish this except the Son of God, who became the Lamb of God for our sins.
Because of his royal blood, that flowed from the hill of Calvary, we now have a better and perfect covenant. A covenant that not only saved the Jewish people, but gave us an inheritance also to be one of Gods children. We now are in that better and perfect covenant through Jesus Christ Amen