Let's surmise that most would know the Christmas story, even the unchurched know the Christmas story. You'd know the Easter story but the unchurched have vague ideas that Easter Sunday is actually Good Friday and that completely confounds them... You've probably heard different vignettes about David, Moses, and Abraham. A Sunday Morning Christian knows the stories, a couple of scriptures, and perhaps a creed. All good things but are they enough?
Think of it this way: Every week, for one hour, you sit in on a Chinese Language lecture. When you come home you don't read the text book, you don't listen to tapes, you don't speak Chinese with anyone. As the weeks and the months go on, you pick up a couple of phrases. Years go by... can you write the characters? Remember, it's a lecture you've been attending, not a class room. Can you honestly say that you speak Chinese? Can you honestly say that you are fluent or can you just fake your way through? Do you lie to yourself? If you meet the King of the World and He speaks Chinese will you be able to provide an answer or will you hear:
Matthew 7:21 “Not everyone who calls out to me, ‘Lord! Lord!’ will enter the Kingdom of Heaven. Only those who actually do the will of my Father in heaven will enter. 22 On judgment day many will say to me, ‘Lord! Lord! We prophesied in your name and cast out demons in your name and performed many miracles in your name.’ 23 But I will reply, ‘I never knew you. Get away from me, you who break God’s laws.’