For those whom he foreknew he also predestined to be conformed to the image of his Son, in order that he might be the firstborn among many brothers (Romans 8:29).
This process of being conformed into the image of Jesus is painful and slow and, most often, it feels like nothing is happening. My sin continues to stalk me. My ungratefulness towards God continues to plague me. It is only my absolute trust the God is doing this work, and, therefore, he will accomplish it that gives me any hope.