Please note that the Holy Trinity, stated as “the Father, the Word, and the Holy Ghost,” is found only in the King James Version (also the NKJV) and other more obscure versions derived from the same manuscripts. I do not judge other believers based on what Bible version they choose. Even so, I believe every Christian should at least consider this fact: most widely used versions do not explicitly describe the three-part Godhead as “one” in 1 John 5:7.
For example: 1 John 5:7 (NIV) reads “For there are three that testify,” and makes no mention of the Father, Son, and Holy Spirit.
Grace and peace,