I would have only one observation, which raises a question of scripture, about adding ro the words/commands
But Traditional Christianity does not add to scripture.
Who had authority to add such extra meaning? Who had the authority to interpret the words into a meaning called the trinity?
"But the hour cometh, and now is, when the true adorers shall adore the Father in spirit and in truth. For the Father also seeketh such to adore him." (John 4:23)
"God is a spirit; and they that adore him, must adore him in spirit and in truth." (John 4:24)
"The Spirit of Truth, whom the world cannot receive, because it seeth
him not, nor knoweth
him: but you shall know
him; because
he shall abide with you, and shall be in you." (John 14:17)
"But when
the Paraclete cometh, whom
I will send
you from the
Father, the
Spirit of Truth, who proceedeth from the
Father,
he shall give testimony of
me." (John 15:26)
Very much a triune here – the Paraclete, the Spirit of Truth; Jesus, and the Father – three distinct entities.
"But when
he, the
Spirit of Truth, is come,
he will teach you all truth. For
he shall not speak of
himself; but what things soever
he shall hear,
he shall speak; and the things that are to come,
he shall shew you." (John 16:13)
"We are of God. He that knoweth God, heareth us. He that is not of God, heareth us not. By this we know the spirit of truth, and the spirit of error." (1 John 4:6)
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"He that hath ears to hear, let him hear." (Matthew 11:15)
"He that hath ears to hear, let him hear." (Matthew 13:9)
"Then shall the just shine as the sun, in the kingdom of their Father. He that hath ears to hear, let him hear." (Matthew 13:43)
"And he said: He that hath ears to hear, let him hear." (Mark 4:9)
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That hearing did not stop when the last drop of ink dried on Scripture, nor with the death of the last apostle ...