All priests under the law of Moses came from the tribe of the Levites. Jesus came from a different tribe (Judah), which brought a change of priesthood. With Jesus becoming our High Priest, this would mean there was also a change of law. The "change" here means a transformation or removal of the former commandment under the Old Covenant. The result was God providing Jesus as a guarantee or assurance of a better covenant. The Old was annulled and the New would ensue.
565. Not Revised and Improved – It’s a Brand New Covenant
This week we look further into the differences between the Old Covenant and the New Covenant. The first one was established between God and Israel. It was an arrangement that never included Gentiles (non-Jews), not before the cross and certainly not after. The Old would become obsolete and be replace by the New, as a result of the superiority of the ministry of Jesus Christ. This covenant would bring Jew and Gentile together.