There are four distinct aspects of the person of Christ in the four Gospels; so in the epistles there are four figures, or aspects, of “the mystery.”
In Matthew the Lord is revealed to us as Son of Abraham, fulfilling all righteousness; in Mark, as the perfect Servant; in Luke, as the perfect Man, Son of Man; in John, as Son of God.
In the epistles “the mystery” is revealed under four aspects: the temple (“In whom all the building fitly framed together groweth unto a holy temple in the Lord”), the church (or assembly), the body and the bride.
Things New and Old, 24:232