In Sifrei Rav Tzadok, in the back of chelek bais, there is a section titled Yisroel Kdoshim. On page 28 of the print I was using, he is in the middle of discussing Shimshon, Dovid and Bas Sheva, and Yosef Hatzaddik. He makes a statement, "and so it is with the nisyonos of...