Newton's laws are not fact, but scientific theory that's been tested through experiment and observation over hundreds of years.
His convictions are just opinion.
How many of us actually get to prove newtons laws for ourselves? How many of us consciously wake up and say, today I will test out gravity? But isn't the law of Gravity real, yes it is!
Thing is, most of what we know, we have read from what others have done or experienced, more in the scientific field. Why can't we apply the same standard to scripture? Maybe if we study deep we can prove the things written therein
How do you prove scripture, especially when they contradict each other?