If Christ is the Teacher, then how can one be taught when Jesus hasn't come yet?
Jeremiah 31:34
And they shall teach no more every man his neighbour, and every man his brother, saying, Know the Lord: for they shall all know me, from the least of them unto the greatest of them, saith the Lord: for I will forgive their iniquity, and I will remember their sin no more.
Matthew 23:8
“But you are not to be called ‘Rabbi,’ for you have
one Teacher, and you are all brothers.
Luke 17:21
nor will people say, ‘Here it is,’ or ‘There it is,’ because the kingdom of God is in your midst.”
I'm not an OT follower.
The Spirit that made Jesus a Christ is the teacher. It spoke through Jesus. Christ means anointed by the Spirit. It was through him man received it for themselves for the first time.
He taught us how to be sons (of God) as he was, which is why he called them brethren or brothers.
John 1:12
But as many as received him, to them gave he power to become the
sons of God, even to them that believe on his name:
The Spirit is the mother of the sons, which claimed Jesus as she entered him "this is my son".
Luke 8
20 And it was told him by certain which said, Thy mother and thy brethren stand without, desiring to see thee.
21 And he answered and said unto them, My mother and my brethren are these which hear the word of God, and do it.
John:
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.
Comforter (capital C) Holy Ghost (capital) Spirit (capital) all the same thing. Mother (to sons).
It's hard to break the orthodox patriarchy of the early catholic church (2nd century). To them there is no way the Spirit could be feminine in form. But Jesus spoke Aramaic, and spirit is she, rather than he. It gets lost in Latin translations.
Thomas has Jesus saying:
(101) <Jesus said,> "Whoever does not hate his father and his mother as I do cannot become a disciple to me. And whoever does not love his father and his mother as I do cannot become a disciple to me. For my mother [...], but my true mother gave me life."
The difference is flesh to spirit thinking, the hallmark of the entire gospel message (not the OT). Without this (Spiritual) knowledge, people follow church fathers like Terullian, and see some sort of trinity.
The son and the Spirit both know that the Father is above and greater than both of them. The gospel says it, yet people don't see it.