Justification is not just a one-time event. It has profound personal implications in our lives. It affects us entirely. That's why we must also think of our justification as our salvation. Paul begins to expound on the rich implications of our justification, which is also our salvation, from chapters 5 to 8. Paul is not talking about something separate from our salvation, like our sanctification, for instance, as some theologians call it. He is still talking about salvation all throughout, even though he is detailing its implications.