I am never manifest to the foolish and unintelligent. For them I am covered by My internal potency, and therefore they do not know that I am unborn and infallible.

Krishna veils Himself through yogamāyā — His own internal spiritual power — so that those unprepared to receive Him do not. The Divine is not hidden from malice but hidden by wisdom, waiting to be revealed to those who sincerely seek. The veil is itself an act of grace.