SHAFAQNA – Ayah 10 of Surah Al-Roum says: “Then, how evil was the outcome for those who practiced evil, simply because they denied God’s signs and kept on making fun of them!” Or in simple words, the end of those who committed bad deeds (sins) was that they reached a point where they denied God’s (clear) signs, and made fun of them. Sometimes it can be seen that the human being persists in committing sins, and gets to a point where at the time of death/dying, denies God! And denies Divine Signs. In fact this happens gradually .
 Jihad-e-Akbar, Imam Khomeini (RA), Page 42.