Chiastic literary structure of the Johannine Comma

The chiastic literary structure of the Johannine Comma is a commonly overlooked one — Comma Johanneum continued from the preceding v. 5:6 in the First Epistle of John forms a chiastic structure:

A: "This is he that came by water and blood, even Jesus Christ; not by water only, but by water and blood." (6a)

B: "And it is the Spirit that beareth witness, because the Spirit is truth." (6b)

C: "For there are three that bear record in heaven," (7a)

D: "the Father, the Word, and the Holy Ghost:" (7b)

C': "and these three are one." (7c)

B': "And there are three that bear witness in earth, the Spirit," (8a)

A': "and the water, and the blood: and these three agree in one." (8b)