"There are three kinds of people in the world: people who make things happen, people who watch things happen, and people who wonder what just happened."
Although this quote doesn't necessarily have spiritual implications, I still find it true in light of Christianity. God does not call us to be passive. He did not place us here, in this specific time, to merely survive. When I first heard this quote, my reaction was to try to label it as a "personality thing". So-and-so is outgoing, and so she is going to be the one that makes things happen; whereas so-and-so just doesn't have the personality and so he's the "type" that is going to sit back and watch. God doesn't label us by personality types. The truth is that he has called us all to the same thing: to live our lives in a way that brings Him maximum glory. Okay, so maybe you're an introvert, but is that really an excuse? I don't think so. As Christians, we should all be the "type" of person that makes things happen. After all, in the end, it's not going to matter what people thought about us. What's going to matter is whether or not we used the things that God gave us to showcase His supremacy. How different the world would be if we would get past our fear of man!
"For God has not given us a spirit of timidity, but of love and power and discipline."
[2 Timothy 1: 7]