[Pooya/Ali Commentary 7:156] "My mercy encompasses everything" shows that the canvas of Allah's mercy enfolds all those sinners who turn repentant unto Him as mentioned in verse 153. While warning people in Bani Israil: 15(No one shall carry another's burden), and in Zilzal: 7 (whosoever has done even an atom's weight of good shall be rewarded), Islam assures the sinners that the doors of Allah's mercy always remain open for those who sincerely turn repentant to Allah (see commentary of al Fatihah: 3). The theory of a general and unconditional pardon propagated by any religion that the price of the sins committed, being committed and to be committed by all the human beings has been paid by a prophet, gives birth to evil, disorder and corruption. It becomes a licence to sin and make mischief in the world. See Jathiyah: 21 and 22. Verse 157 says that the divine mercy is available to those who safeguard themselves against evil and follow the teachings of the Holy Prophet, again repeated in verse 158. See commentary of Nisa: 80. For ummi see commentary of al Baqarah: 78. The advent of the Holy Prophet had been announced by Musa and Isa. See commentary of al Baqarah: 40. For amr bil maruf and nahya anil munkar see commentary of Ali Imran : 101 to 115 (Aqa Mahdi Puya's note on page 245. The Holy Prophet was sent to the whole mankind as a messenger of Allah for all times. See also Nisa: 7 ; Anbiya: 107 and Saba: 28. Matthew 10: 5, 6; and 15: 22 to 26 confirm that Isa was sent to the lost sheep of the children of Israil. See commentary of al Baqarah: 255 for "There is no god but He and to Him belongs the kingdom of the heavens and the earth"; and for "He gives life and death" refer to the commentary of al Baqarah: 259 and 260.