6:54. When those who believe in Our Ayât (proofs, evidences, verses, lessons, signs, revelations, etc.) come to you, say: "Salâmun 'Alaikum" (peace be on you); your Lord has written Mercy for Himself, so that, if any of you does evil in ignorance, and thereafter repents and does righteous good deeds (by obeying Allâh), then surely, He is Oft*Forgiving, Most Merciful.
6:55. And thus do We explain the Ayât (proofs, evidences, verses, lessons, signs, revelations, etc.) in detail, that the way of the Mujrimûn (criminals, polytheists, sinners), may become manifest.