I don't think we need to go far to see the Scriptures set their own priority even as that quote you showed says, the show of love among Jesus disciples is what made them distinguishable from the false claimants.
Upon examination it is this quality of love that is given top place among the virtues, “Love is the Law's fulfillment”, above faith and hope, above miraculous gifts as tongues and prophecy, which were to pass away, to the point that without this quality of love all else was pointless. To the degree, “God is love”.
So as I see it the understanding of the Scriptures are within themselves to those that truly seek it without trying to make a “trump card” on their own.
As to the third, we're not saved by doctrines but by our worship of God “in spirit and truth” as Jesus prayed for his disciples to be sanctified by “truth”.
In discussions with others assume good motives and don't rush to take comments personally. Civil toward all, respectful of none.
An “outermost circle”? A sort of minimum of belief and action? Does the Scripture set some minimum or define the edges of that circle?
“So as I see it the understanding of the Scriptures are within themselves”
Well, then Pope count-your-change has infalliably spoken. Scripture please that affirms this.
First among virtues, yes. The discussion had started over seemingly contradictory doctrines, however, not virtues or behaviors.
As to the third, we're not saved by doctrines but by our worship of God in spirit and truth as Jesus prayed for his disciples to be sanctified by truth.
Just to make sure I don't misunderstand your beliefs, "we're saved...by our worship of God"? Is the "truth" that the disciples are sanctified by just another name for "this quality of love that is given top place among the virtues" or is it something else?
An outermost circle? A sort of minimum of belief and action? Does the Scripture set some minimum or define the edges of that circle?
That is the question of the hour. Do you believe there is an "outermost circle"? What lies inside that circle in your belief system? What lies outside?