We live in a world where information is always changing. Not to mention, we are all human, and sometimes we act (or even need to act) before we know the whole story. The question of maturity comes with can we change our minds and our actions when the information changes?
The real question is can we do this with faith? Too often we treat faith like somethine we decide, we are in control of who God is. Only we can choose what we believe, but we cannot choose what God is like or anything about who He is.
I was reading today about a man who had problems with this. He was a Roman governor who knew about Jesus and His teaching, but apparently not all of it...
Acts 24:24-25 ~ After some days Felix came with his wife, Drusilla, who was Jewish, and asked for Paul to be brought to him. He listened to Paul talk about believing in Christ Jesus. But Felix became afraid when Paul spoke about living right, self-control, and the time when God will judge the world. He said, “Go away now. When I have more time, I will call for you.” (NCV)
The funny part, this guy sent Paul back to prison for two years. That's how badly he did not want to hear about living right, because that would require him to change his actions.
We have to do all we can to be learning about Jesus, to find out who He is and all His teachings so we can know Him and live properly. And that sometimes mean we will learn something new to us, something we weren't living by before. The question is, what will we do? Will we change, or will we be like Felix and bury our heads in the sand hoping ignorance will be an okay arguement for our lack of change?