and on what basis is it 'affirmed' - subjective yes?
God 'affirmed' to smith to send his folks to canada (iirc) and the copywrite to the bom would be sold for a lot of money. Never happened, yet smith had it affirmed by God.
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.