Chapter 8 of Romans is just so full of life-enhancing verses.  See Helpful Intercession and If God is For Us for examples.  Between the declaration that the Holy Spirit intercedes for us and the assurance that nothing can take us from God’s merciful grasp, we find a list of steps we go through to grow in holiness in verse 29-30.

The familiar list:

• He (God) foreknew us
• Those he foreknew he also predestined to be conformed to the image of his Son
• Those he predestined he also called
• Those he called he also justified
• Those he justified he also glorified.

The chain is unbreakable for the effectively called.