1Tim.3:6 counsels the church to ward against promoting men as teachers who are too inexperienced, too brash, in short more likely than not to fall into pride. Not that experienced men cannot also be proud, but these have often stumbled and more of them know the reality of weakness and failure, along with correct doctrine.
Heb.5:12 has the author rebuking some of his audience for failing to have attained the level of skill in true doctrine, that they might be effective teachers. Rather, these need remedial instruction themselves. The warning serves all who accept they might be moving confidently in the wrong direction, dragging others along with them if so be they have adopted a novelty as "mystery revealed." Such men take their powerful conviction as sufficient proof of their doctrine, and do not know the whole argument for, neither cogent arguments against their position.
I have dealt with this in the case of paedocommunion error. Without proposing the youtuber in view must be thus, it bears concern that another poster has already noted his rapidly adjusting theological stance. It seems to me the more mature reaction in a teacher to an evolution of views within him is: to pause in his exercise of teaching. Let the new views settle. Then, before promoting what are settled conviction (on better ground than the old), he publicly rebukes himself for his previous error and promotion of it. He asks humbly if his audience is willing to forgive, and continue with him as he with greater care, patience, and compassion corrects the old error he once built up in them--which may resist his new effort.
1Cor.4:7 tells us that our every possession of truth is a gift of God. It is mercy to be turned from error. Pride goeth before a fall. It creates the conditions where men run into error, and greater error.
- "Just stop being Baptist"
...and a rather annoying presentation to boot...
