The dual class "Christianity", one with the New Covenant and one without it, that the WT teaches was unknown to the apostles.
SB, yes, that is the big void in their memorial/communion talk. Wt writer's understanding of the 12 tribes of the Israel of God. all members of all the tribes were in the Law, / are in the new covenant.
new covenant for all, for forgiveness of sin. kingdom covenant later, if you are a male virgin and die by the axe.