That verse is accepted as having been added to the Bible by most scholars, but I know none of the proponents here will accept that so, again, I say what you are claiming it teaches, that God is three people, must be supported by other Scripture.I have posted scripture. If you deny what the scripture says that these three are one, then that is on you.
For there are three that bear witness in heaven: the Father, the Word, and the Holy Spirit; and these three are one. 1 John 5:7
Do you agree that these three; the Father, the Word, and the Holy Spirit are one?
If that is all you've got, you have nothing.
The three words, Father, Son and Holy Spirit, describe the same person. And the Bible has been filled with that Truth from cover to cover.
Every time Romans 8:9-11 is presented in this debate, it is 100% ignored. Yet it makes plain that Christ is the Holy Spirit. The trinity doctrine cannot allow for that FACT.