By Two Immutable Things

In this course Hebrews describes, God and man swear mutual oaths.  This is because God wants to show man the unchangeability of his "counsel."  In Greek this is boule, which is the word used in Isaiah to translate the Hebrew etza, where it manifestly means the tree of the temple menorah (for instance, Isaiah 11:2 and 5:18-19).  See also Isaiah 9:6, where the Greek LXX provides as the sole title of the descending Melchizedek priest the "angel of great counsel."  The course ends with grasping something described as "hope" and entering within the veil, where one has been preceded by Jesus, the Melchizedek priest.