Romans 1-4 asks and answers four crucial questions that are basic to the Gospel message:
1. Who made us, and to whom are we accountable?
2. What is our problem, that is, are we in trouble, and why?
3. What is God's solution to that problem, that is, how has he acted to save us from it?
4. How do I come to in included in that salvation, that is, what makes this good news for me?
What are your answers to these questions? Chapters 1-4 of Romans have the answers.