If God is for us, who can be against us? Paul asks a rhetorical question with a clear answer: no one. If God stands on your side, there is no successful opponent.
Peace arises not because there are no opponents but because your ally is unbeatable. God is not neutral. He is for you. Actively, consciously, permanently.
Today: no matter who or what stands against you, God stands for you. That is your peace.