I am going to make a radical statement, and excuse me for yelling. However, I believe this is of key importance:
EVERYBODY’S LIFE EXPERIENCE SEEMS TO VALIDATE THEIR RELIGION, NO MATTER HOW FAR OFF THEY ARE.
Therefore, the weakest argument (the least Christian argument) a believer can use is, “If you had seen what I have seen…”, or, “If you knew what I know…”.
This makes life-experience and past testimony our weakest form of witnessing. Yet I hear it used so much to justify this belief or that practice.
First, there are too many liars out there. The same people who put false reports on Facebook or in Emails are living, breathing, talking deceivers among us. Stories are twisted, embellished, and fabricated to validate a perception, belief or preference. Too much so as to be influenced by them, anyway. The Bible calls them false teachers. It is too difficult to judge who is completely honest and who is partially honest.
Second, Satan, the Father of lies, has the job of interpreting our life experience into untrue beliefs. He can stack the evidence. Paul talked about the “scheming of the Devil” in Ephesians 6:11.
Third, we are not above deceiving ourselves. “The heart is deceitful above all things, and desperately sick; who can understand it?” If you look through a red lens everything will be a shade of red. If you look through a blue lens, everything will be a shade of blue.
So what is our greatest witness? A CHANGING life.
“…let your light shine before others, so that they may see your good works and give glory to your Father who is in heaven.”
Anyone can choose to disbelieve anything you say happened in your life, no matter of how certain you are of it. However, no one can deny what Christ is doing in your life right now, right before their eyes, as Jesus remolds you into His image.