1 Jn. 5:
7 For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.
When it says they these three are one, this means of “one accord, one mind” they did not contend nor dispute over doctrine!
off to the docs!
These three are One Everlasting, self existing YHWH, the LIFE/BREATH who made all things and who has One and only One “SEEN Similitude”, who is YHWH the WORD, and in whose One image Adam is made [Genesis 1:26-28; Romans 5:14], and who is now come in second human being flesh creation, in a body prepared in the womb of a virgin for His donning/garmenting [Isaiah 59], to be our Kinsman/Redeemer.
Compare that to all created kinds/spirits who are dressed in one similitude:
Adam is one kind/name/spirit/ with one similitude [our flesh]: “male and female made He them and called their name Adam”; “one flesh, one bone, one blood/life, one spirit”, and two persons. All these things are so stated in the Word of God. We are one kind/spirit/being, and were created to multiply the kind until the house called Adam was finished and earth was filled, for the dwelling of the UNSEEN Glory, as His sons/temple/house.
We fell from that purpose in the fall and so, we wear clothes to hide the shame of our vanity of being, in Adam.
In Hebrew original, Adam is the name of our one human kind, and we are all the multiplied one, as individual seed/persons.
Apple; orange; deer; canine; feline;...and so on and so forth, all individual created spirits have thier own “flesh”, or garments, in which to dwell, and the created/formed spirit of each drives them to obey the commandment of the creator [Who is the Father, by that creation, of the spirits of all flesh], to “be fruitful and multiply” the kind by the seed created within. Malachi 2:15 shows why we were made “one” spirit, for the multiplication of sons of God; but we are not sons of God since the fall/defilement/death, in spirit, of our head/firstborn/chief.