This we requited them with because they disbelieved; and…

Indeed the mystery of Christ runs the risk of being disbelieved precisely because it is so incredibly wonderful

— Cyril of Alexandria

“Have those who disbelieved not considered that the heavens and the earth were a joined entity, and We separated them and made from water…

— Allah

Don't discuss yourself, for you are bound to lose; if you belittle yourself, you are believed; if you praise yourself, you are disbelieved.

— Michel de Montaigne

“It never before happened that the rich ruling and more educated minority, which has the most influence on the masses, not only disbelieved the…

— Leo Tolstoy

To become properly acquainted with a truth, we must first have disbelieved it, and disputed against it.

— Novalis

“Anything that can be disbelieved is an image of error.”

— M. Ekalb

There was another thing I heartily disbelieved in - work. Work, it seemed to me even at the threshold of life, is an activity…

— Henry Miller

“I disbelieved what he was saying so hard that I probably created an alternate universe where it wasn't true.”

— Elliott James

And they assign to Him a part of His servants; man, to be sure, is clearly ungrateful.

— Quran

And He gives you of all that you ask Him; and if you count Allah's favors, you will not be able to number them;…

— Quran

And when distress afflicts you in the sea, away go those whom you call on except He; but when He brings you safe to…

— Quran

And when a wave like mountains covers them they call upon Allah, being sincere to Him in obedience, but when He brings them safe…

— Quran

Therefore remember Me, I will remember you, and be thankful to Me, and do not be ungrateful to Me.

— Quran

Allah does not bless usury, and He causes charitable deeds to prosper, and Allah does not love any ungrateful sinner.

— Quran

Surely Allah will defend those who believe; surely Allah does not love any one who is unfaithful, ungrateful.

— Quran