How Can Three Be One? (1 John 5:7)
“For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.”
(1 John 5:7)
This passage (1 John 5:7) illustrates a simple mathematical equation. We are given three variables (the Father, the Word, and the Holy Ghost). The verb “are” is used as the mathematical operation word which stands for equal to (=). It is equated as saying: These 3=1
By definition: One is singular; (as in a single person, thing, unit, kind, group, classification or category)
By definition: Three is plural; (plural is always more than one)
By definition the two numbers are different and will never have the same meaning.
Nonetheless the summation of this equation (3=1) can be proven true both mathematically and Biblical.
This is only achieved if the plural value (three) of the equation is said to be reflective of a category of words which are used to portray (or symbolize) a singular value of one (one being, spirit, etc.). In this case the three titles listed are reflective of one God, not three God personages.
The Father, the Word, and the Holy Ghost , that bear record in heaven, is = 1[God]
(Reference Link: And These Three Are One (1 John 5:7-8))