Neither of us can prove anything, which is why it's based on faith.I believe your beliefs do not have a valid foundation.
I believe you need to think again. I come from a Baptist background and I am an iconoclast which for some who consider themselves orthodox means I am a heretic.
I don't believe there is any Biblical evidence for that.
I believe you haven't proven this yet and won't be able to because there is no evidence to support it.
I believe that is too much of a generalization. It was in particular those Jews who sought to kill Jesus that were not following God.
I believe Jesus stated His reason for coming which was to die and in the process pave the way for the Holy Spirit to come. another reason He gave was so He could preach the Gospel.
Biblical "evidence" is just that. Following what the orthodox catholics taught. It is "their" Canon referred to as the "Bible".
If I say to you "ALL that ever came before Jesus are robbers and thieves and the sheep didn't hear them", you are still convinced to follow those before Christ came, by orthodoxy. You will even look for a way to discredit the words to fit the orthodox ideology. John 10:1-9
The Holy Spirit didn't just "come". Jesus gave it to his disciples before he left. John 7:39 John 20:22
The Gospel speaks (by the Spirit). I left the orthodox decades ago due to them so wrapped up in the "church Bible" they didn't hear the Spirit.
Follow what you believe is real truth.
But my beliefs have foundation. You just don't see it.