They were Carlists from Navarra and while both of them cursed and blasphemed when they were angry they regarded it as a sin which they regularly confessed.
There are no more uses of "blaspheme" in the book.
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Did she blaspheme against the Prophet Muhammad?
Will the West stand up for its customs and mores, including freedom of speech, or will Muslims impose their way of life on the West? Ultimately, there is no compromise: Westerners will either retain their civilization, including the right to insult and blaspheme, or not.