creator vs. lord

I'm realizing that many people will identify God as creator and they will acknowledge Jesus as the son of God. They say they believe that God created everything and His son came to earth. But I'm finding for some people that it stops there. They see God as their creator and that's it. They aren't atheist or anti-Christ...they believe in it all. But if you read the Bible, you know that simply believing isn't enough. I guess I'm just seeing that the Devil doesn't mind if you simply "believe" in God...He just doesn't want you to live like it or change for Jesus. So in the meantime, all the people are saying they believe in God as creator but they don't see Jesus in the Lordship position. What an awful place to be in. You think you are alright and your religiously and belief system is enough-only to find out that God has asked of so much more.