The Breastplate was worn by the High Priests of the Israelites to minister to GOD as Priest or mediators between GOD and man. Arron the brother of Moses and Arron,s sons began the Levitical Priesthood. Moses and Arron were from the tribe of Levi one of the 12 tribes of Israel, that were delivered out of Egypt by the mighty signs and miracles of GOD.
The blessings of obedient Abraham were passed to his son Issac and his grandson Jacob whose 12 sons are the 12 tribes of Israel, that all the nations of the earth would be blessed through JESUS CHRIST, who is also a descendant of Abraham. The death and resurrection of JESUS ended the levitical priesthood. JESUS is now our great High Priest by which we have free access to the presence of GOD. Just call on his name.