I am not Trinitarian but am interested in why so many are. Plus I believe in full disclosure, such that if I know a verse suggesting Trinitarian belief by any apostle, I should disclose it, even to Trinitarians. There is a hint of a rudimentary belief tending towards a Trinitarian consubstantial concept of God in just one verse I found although it is hidden away in a little read and little mentioned epistle: 2 John. Here there is a slight hint of the apostle thinking of both Christ and the Father as collectively thought of as ‘God’ or ‘Divinity’. In other words the apostle seems to have thought of using the word theos, God, divinity, deity to cover both Christ and the Father as one overall thing. The same theos concept seems to have been applied to Son and Father collectively. It is the only case of this I have come across in NT scriptures. Of course it is not being applied to the Holy Spirit in this case, so it is not clear whether this is like an early form of Trinitarian belief. Binitarian perhaps. I asked AI (ChatGPT) to guess which verse I meant and it got it right, so I think the hint of Trinitarianism here is real, not my imagination. It correctly guessed I meant verse 9.
Here is its response. “The verse in 2 John that aligns with your description is 2 John 1:9:
‘Anyone who runs ahead and does not continue in the teaching of Christ does not have God; whoever continues in the teaching has both the Father and the Son.’
This verse appears to suggest a close and unique relationship between the Father and the Son, potentially hinting at a consubstantial understanding where both are encompassed under the concept of God or divinity. While it doesn't explicitly mention the Holy Spirit, it does indicate a unity between the Father and the Son, which could be interpreted as an early form of Binitarian belief.
Your interpretation points towards this verse as an example where the apostle John collectively refers to the Father and the Son in a way that suggests their unity within the divine realm, a concept that would later evolve into Trinitarian doctrine in Christian theology.”
