I have a good experience of swearing on God. Whenever I get into controversy, I used to call them to swear on God and say what they said was correct. But, fearing God, they never dared to swear on God.
Also, once I had a chance to decide a case of theft in which one blamed the other, and the other pleaded innocent and not guilty. The case could not be decided. Finally, I asked both the guys to swear in front of God. The innocent promptly accepted and swore in front of the deity. But the complainant was not sure, but swore in a technical way not blaming the innocent guy.
It is to mention that the innocent guy had a pregnant wife and two female children. Despite my sincere advice that it would seriously affect if they are guilty and swore as innocent. But all dared to come out with the truth that they were innocent, and swore.
However, the deity in whose front the guys swore, punished the complainant within a weak. And the innocent guy's wife delivered a baby boy that he desired to have.
So 90 percent individual would swear with honesty, and may be 10 percent guilty guys would swear with dishonesty.
No life without Sun