Romans 3:3-5

If some Jews were not faithful to him, will that stop God from doing what he promised? No! God will continue to be true even when every person is false. As the Scriptures say: “So you will be shown to be right when you speak, and you will win your case.” When we do wrong, that shows more clearly that God is right. So can we say that God is wrong to punish us? (I am talking as people might talk.)