57:16
Has not come (the) time for those who believed that become humble their hearts at (the) remembrance (of) Allah and what has come down of the truth? And not they become like those who were given the Book from before, (and) was prolonged for them the term, so hardened their hearts; and many of them (are) defiantly disobedient.

5:13
So for their breaking (of) their covenant We cursed them and We made their hearts hard. They distort the words from their places, and forgot a part of what they were reminded of [it]. And not you will cease to discover of treachery from them except a few of them. But forgive them and overlook. Indeed, Allah loves the good-doers.

6:43
Then why not when came to them Our punishment, they humbled themselves? But became hardened their hearts and made fair-seeming to them the Shaitaan what they used to do.

2:74
Then hardened your hearts from after that so they (became) like [the] stones or stronger (in) hardness. And indeed, from the stones certainly (there are some) whi gush forth from it [the] rivers, and indeed, from them certainly (there are some) whi split, so comes out from it [the] water, and indeed, from them certainly (there are some) whi fall down from fear (of) Allah. And not (is) Allah unaware of what you do.

2:74
Then hardened your hearts from after that so they (became) like [the] stones or stronger (in) hardness. And indeed, from the stones certainly (there are some) whi gush forth from it [the] rivers, and indeed, from them certainly (there are some) whi split, so comes out from it [the] water, and indeed, from them certainly (there are some) whi fall down from fear (of) Allah. And not (is) Allah unaware of what you do.

39:22
So is (one for) whom has expanded Allah his breast for Islam so he (is) upon a light from his Lord. So woe to (those are) hardened their hearts from (the) remembrance (of) Allah. Those (are) in error clear.

22:53
That He may make what throws the Shaitaan a trial for those in their hearts (is) a disease, and (are) hardened their hearts. And indeed, the wrongdoers (are) surely, in schism far.