Whether from God, from a benign moral genius, or from a super AI focused on morality, if one has sufficient evidence that an entity has vastly superior moral reasoning to oneself, is one morally obliged to follow its advice?
Imagine a readily accessible device, like a smartphone, that automatically points out whenever we are about to act immorally by our own core values. Would we be obliged to heed its warning?
Update:
An important distinction must be made here regarding intelligence (ability to make inference and solve problems) versus will (held values and their application). For the sake of the argument, assume either (a) the will of the source matches that of the recipient or (b) the source is avolitional, acting as a layer of pure external intelligence.
One of the comparisons made in the comments was to a parent-child relation. Though interesting, this dynamic involves a clear difference of will since each side is a moral agent of its own desires, values, and genes.
While not mentioned, I will preemptively say that an authoritarian system or figure often has will at odds with its subjects, even if differences are kept silent.
The primary question here is whether a person has a moral duty to follow the advice of higher moral intelligence aligned with one's core values, even if that advice stems from inference beyond one's mental capacity.