The numbers you mentioned also have significant symbolic meanings within the Bible:

Bottom-of-funnel (BOFU) aggressive sales tactics.

If you are looking for a specific ebook or "work" (training manual) often discussed in fitness forums:

If this is the case, “La Bibbia 50 30 40 20” might be a (hence “disponibile in work”) – a PDF or spreadsheet that analyzes biblical numbers. No official Bible is called this.