The concept of priesthood in ancient Israel was integral to the religious and legal framework. Priests were intermediaries between God and the people, offering sacrifices and maintaining the laws. When the priesthood changes, as it did with the coming of Jesus, it signifies a profound transformation in how people connect with God. Jesus is seen as a high priest of a different order, not bound by the traditional lineage of Aaron but by the order of Melchizedek, which symbolizes a more eternal and universal priesthood.
This shift implies a new covenant, where the laws are written on hearts rather than tablets of stone, emphasizing a personal and direct relationship with God. The change in priesthood reflects a change in the law, moving from a system of external regulations to one of internal transformation and grace. It invites believers to embrace this new way of living, where faith and love fulfill the law, and where Jesus' sacrifice opens a new path to God.