To convict a person of a crime, you must prove 'beyond a reasonable doubt' that they committed the crime. This makes sense because the penalty (often imprisonment) is very serious. In a civil case, to be found guilty, one must merely prove 'a preponderance of evidence' which is a fancy way of saying more than 50%. When it comes to trusting God, which standard are we using? The fact is that He meets both standards as long as we are open to the vast body of evidence.
Lord, you have provided more than enough evidence to prove that You exist and are worthy to trust so help me and those around me to not be confused by the opposing argument.