What makes you think swearing on the Bible keeps a liar from lying.
The Bible doesn’t condone lying.
The Quran commands it.
Right - and actually, why do people submit to swearing on the Bible anyway? Jesus taught not to swear on anything holy but to let " your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil" (Matthew 5:33-37)
I have often wondered what I would do if I had to testify in court and was told to swear on the Bible.