I point out where you are wrong on one verse and now you’re ready to move on. I don’t believe in luck. I would love to discuss further with you but if your mind is closed it will make no difference what truth i point out.
If you’re willing let’s look at a few verses starting with Matt 3:16-17
“And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him: and lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.”
Here we see Jesus(Son), the Spirit(Holy Spirit), and the voice from Heaven(Father). We see 3 distinct persons acting simultaneously. How would you explain this?
Next let’s look at John 17:1-5
“These words spake Jesus, and lifted up his eyes to heaven, and said, Father, the hour is come; glorify thy Son, that thy Son also may glorify thee: as thou hast given him power over all flesh, that he should give eternal life to as many as thou hast given him. And this is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent. I have glorified thee on the earth: I have finished the work which thou gavest me to do. And now, O Father, glorify thou me with thine own self with the glory which I had with thee before the world was.”
Who is Jesus praying to here? Himself?
Then in John 14:26 we read
“But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.”
Again we see 3 distinct persons Comforter(Holy Spirit), sent by the Father in My name(Son).
And a verse that you’ve already posted Matt 28:19
“Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:”
Did Jesus say “Go ye therefore, and teach all nations, baptizing them in My name”? No
Now let’s take a look at the history of God being taught as being only one person as you claim. It didn’t start til around 1913. So essentially you claim that for over 1800 years people’s beliefs were wrong.
The big question that you have to ask yourself is this: Should we learn from what the imperfect student did or from what the perfect Teacher taught?