According to Osho, any inconsistency is deliberate: his words are not truth-claims but devices to awaken. Different minds sleep in different ways, so he changes his tone and stance: now a bell, now cold water, even an attack on your cherished ideas to provoke awareness. Statements are to be judged by utility, not truth-value; he is not building a philosophy but serving the single purpose of awakening.
He changes what he says to wake different people up, like using a bell for some and a splash of water for others.