3 What if some were unfaithful? Will their unfaithfulness nullify God’s faithfulness?

Read Romans 3:3 Using Other Translations

For what if some did not believe? shall their unbelief make the faith of God without effect?
What if some were unfaithful? Does their faithlessness nullify the faithfulness of God?
True, some of them were unfaithful; but just because they were unfaithful, does that mean God will be unfaithful?