First you have to understand what is meant by "predestinate" in this passage.

Somewhat summarized and somewhat quoted from a commentary on this passage at Biblegateway.com: "God had us designed for his glory and happiness. But evil took hold of us and the whole human race deserved destruction, but God determined to recover us. He predestinated that we should be conformed to the image of his Son. In this life we are in part renewed and walk in his steps."

Predestined from prae which means before + destinare which means to determine. So Predestinate means to determine beforehand.

Determine from de + terminare/terminus means to limit, to decide by authoritive decision; to direct, to affect, or influence strongly.

So God's predestination for us is to be renewed and to walk in his Son's steps. He has decided to limit us and direct or influence us to be renewed and to follow him.

But that doesn't mean that everyone whom he called is justified and will be glorified. It's a two way street. We have to respond back to him. Therefore, we have a choice to follow his predestined path or not to be renewed. 

Choice from kausjan to examine, kiusan to choose means an act or an alternative.

He uses our choices to influence us. So, no that does not mean we are following his predestined path. If everyone were following his predestined path, then ALL would be renewed and glorified.

Hey, no problem. I know there are groups that believe that we have no choice, and that the life we live was determined and we can not make a change to it. I believe that is incorrect by the meaning of predestined. Anyone can predestinate. You need to know what's being predestined.

What hung me up on this scripture passage is: "For those whom he foreknew". "For those" makes me think that there are some he did not know beforehand. What?

Hi Gretchen! Wow, what a great question! (Sorry I didn't read MT4God's answer, but she's probably right...she's really smart!)

Other than her...most people want to look at that question as an either/or. We either have free will OR God established our path already and we have no choice. I believe it's actually a little of both. Of course, I hate to be wrong about anything, so I maximize my chances of being right by agreeing with ALL the answers! No, just kidding. From God's perspective, it's all written out in advance. He isn't trapped inside this time capsule like we are. He sees our future perfectly and knows what will happen. Furthermore, he works things out inside time in ways we can't even fathom (Rom 8:28). That's God's perspective!

From OUR perspective, everything is a matter of choice. Or most things at least. And we can choose to follow God. When we choose not to, we must take responsibility for our choice and face the consequences. If we had no choice, could we really be punished and God be called fair and righteous? There are plenty of bible verses that support both free will and predestination. This seems like the best way to validate all of scripture while at the same time answering your question honestly. Hope I accomplished that at least. Perhaps a pastor or theologian would like to come in and fill in the gaps?