Go through the New Testament and see how often the Gospel writers advise readers to test and check the available evidence.
See Jude 4:10.
1 John 4:1.
Romans 14:5.
2 Timothy 3:14 - or can't you be bothered?
So many more examples. The writers were desperate for readers to TEST the truth and not to merely accept it!
The evidence is there but how many churches major on apologetics? - Being able to justify your faith to those who have none as well as those who are seeking?
Don't know how or where to start - then try this vital book.