39:53  Say, "O My slaves! Those who have transgressed against themselves, (do) not despair of (the) Mercy (of) Allah. Indeed, Allah forgives the sins all. Indeed He, He (is) the Oft-Forgiving, the Most Merciful.

4:116  Indeed, Allah does not forgive that partners be associated with Him, but He forgives [what] other than that for whom He wills. And whoever associates partners with Allah then surely he lost (the) way, straying far away.

15:56  He said, "And who despairs of (the) Mercy (of) his Lord except those who are astray."