Death of Tzadikkim

 Zohar (Shemos 10b) We have been taught that the righteous are removed from this world before their time for one of two reasons: one for the sins of their generation, for when there is much sin in the world the righteous are penalized for its guilt; the second is that when the Holy One, blessed be He, is aware that they would commit a sin if they lived longer, He removes them before their time.