Paul, writing to the church at Rome, uses a style of discussion favored by the Romans. He is asking and then answering questions which he knows his audience wants to ask.
The question is one many are still asking. How can God judge us as sinners if our sin demonstrates His righteousness and love by forgiving us?
But if our unrighteousness demonstrates the righteousness of God, what shall we say? Is God unjust who inflicts wrath? (I speak as a man.) Certainly not! For then how will God judge the world?
PRAY FOR ISRAEL TO RECOGNIZE THEIR SIN AND NEED FOR AN ATONEMENT.