Well, you seem to agree with me then. Thanks.
If the Bible contains doctrine "too" (also), then the rest of the doctrine is of human origin (not all from God).
And because doctrine is a human attempt to sort out what they Bible teaches,
those attempts will vary, or even be in conflict; it is inevitable.
Those who expect that all doctrine will agree are the cause, not the solution, for division.
Are we a part of the problem or a part of the solution.
For some reason we don't see living out the fruit of the Spirit as the solution to so-called "division" (differing opinions on doctrine). We want others to fall in line behind us. I don't consider that to be Christian behavior. But then I may not have my "doctrine" right.
Philippians 2:3-4
Do nothing out of selfish ambition or vain conceit. Rather, in humility value others above yourselves, 4 not looking to your own interests but each of you to the interests of the others.