I see it as to how can we hear God not seen, according to the correct manner of spirit and not the voice of men seen the wrong manner of spirit as to how we can hear what the Spirit says to the churches .Not what the church says as a oral tradition of men .
Ultimately in the end of the matter as a summary (Luk 9:55). we find the key (what kind or manner of spirit) Of men seen or God not seen
But he turned, and rebuked them, and said, Ye know not what manner of spirit ye are of.Luk 9:55
Christ was teaching the apostles how to mix faith the unseen in what they do hear or see when they do encounter a parable.
Three times he hid the spiritual understanding .
The reaction to the first time Christ as the Son of man hid the spiritul understanding. Jesus was removed from the list of who is the greatest just as if he was not there.. The out of sight out of mind manner of spirit .
The apostles would not look to the spiritul meaning because they could not except the "us" in Christ as that not seen, the faith principle .
His kingdom comes not by observation. The one manner of spirit he rebuked them in respect to.
But they understood not this saying, and it was hid from them, that they perceived it not: and they feared to ask him of that saying.Then there arose a reasoning among them, which of them should be greatest.Luk 9:45
Ultimately in the end of the matter Christ was teaching the apostles how to mix faith the unseen in what they do hear or see as we are informed in Hebrews 4.
Let us therefore fear, lest, a promise being left us of entering into his rest, any of you should seem to come short of it.
For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with "faith" in them that heard it.For we which have believed do enter into rest, as he said, As I have sworn in my wrath, if they shall enter into my rest: although the works were finished from the foundation of the world.Heb 4:1