John Trapp on 1 John 5:7

Verſe 7. Three that bear record] viz. That Jeſus Chriſt is the Son of God. Theſe three heavenly Witneſſes have given teſtimony hereof in earth. See the Note on Joh. 5.32 & 8.18.

Theſe three are one] In eſſence and will. As if three lamps were lighted in one chamber, albeit the lamps be divers, yet the lights cannot be ſevered: ſo in the God-head, as there is a diſtinction of perſons, ſo a ſimplicity of nature.