There is no prohibition or 'bad luck' associated with ripping a Bible, though that would be disrespectful if doing so before someone who 'treasures' God's word. Jesus told us we are to live by 'every word of God' which are the Holy Scriptures. But unlike other faiths, we are not compelled to read or respect this Holy Book. We have free will.
There are many Jews and Christians alike who would protect the Holy Scriptures (Hebrew Bible or Bible) from being desecrated or destroy with their lives, believing it a 'curse' to do so.
It's supposedly unlucky. It stems from the story in the Christian bible - of the 'last supper' - when there were 13 people present. The last supper occurred the day before Jesus was betrayed.
There is no such thing as an unlucky day. Although, there are unlucky things such as the devil.
unlucky
unlucky
Not lucky; not successful; unfortunate; ill-fated; unhappy; as, an unlucky man; an unlucky adventure; an unlucky throw of dice; an unlucky game., Bringing bad luck; ill-omened; inauspicious., Mischievous; as, an unlucky wag.
In some cultures, the number 666 is considered unlucky due to its association with the biblical "Number of the Beast." In Chinese culture, the number 4 is considered unlucky because it sounds similar to the word for "death." Similarly, in Japanese culture, the number 9 is considered unlucky because it sounds like the word for "pain" or "distress." These superstitions about certain numbers being unlucky are rooted in cultural beliefs and interpretations.
Nothing is mentioned but as there were 13 people in the New Testament (12 disciples and Jesus) it is considered unlucky.In the Exodus in the Old Testament the Jews left Egypt on the Passover (or Nisan 14 on the Jewish calendar) when all the first-born of the Egyptians died the previous night ( ie Nisan 13), so for the Egyptians "13" was definitely unlucky.
Friday the 13th's Are unlucky!
"Unlucky" in Latin is infelix.
A sentence with the word 'unlucky' would just be a normal sentence. You would be very unlucky if your teacher realized that you had plagiarized this sentence.
No why would it possibly be unlucky?
The unlucky number in Russia is 13.