“Day of Atonement” is notably the highest kadosh/holy day of the year.
In INI faith, according to the so called Old Testament, Aaron’s offerings made atonement. In INI faith, according to the so called New Testament, Yahoshua’s salvation and redemptive work, “covers” the sins of and “passes over” INI sins to make “at-one-ment.”
Faith is the substance of things hoped for, the evidence of things not seen. Faith is a shadow of which Yahoshua Ben YHWH is the reality. Hebrews 10:1-10.
Internal, structural, organization should be such that collaboration coordination, cooperation begins with a common goal: to glorify YHWH.