God communicates to humans in varied ways, from angelic visitations to the "still, small voice" (1 Kings 19:12).
Almost all such communications may be considered "subjective" because they tend to be personal and private rather than public.
I think another set of verses more fully addresses your point:
2 Corinthians 11
12But what I do, that I will do, that I may cut off occasion from them which desire occasion; that wherein they glory, they may be found even as we.
13For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ.
14And no marvel; for Satan himself is transformed into an angel of light.
15Therefore it is no great thing if his ministers also be transformed as the ministers of righteousness; whose end shall be according to their works.
As we can see God is not the only one who communicates that way, hence the ability to think, reason and observe his physical world for verification of the tangible elements of his work.
The one and only all powerful uncreated and every creating God doesn't play hide and seek with his people over mundane Earthly things. I accept that Christ is divine on faith, that he existed on the tangible facts and history that surrounds him.
Just as I don't need nor expect the Holy Spirit to tell me there is a McDonald's down the street, I do not need him to tell me there was a Rome, a Herod or a Bethlehem.
Yet smith had a ‘confirmed’ word from God - that didn’t happen. Sorry Logo, when one relies solely upon the subjective, then you open yourself to your deceptive heart, evil spiritual elements disguised as good and whichful thinking.
And how would you say SATAN gets his message across?