Contradiction with Isaiah 53:1
Romans 10:16 references Isaiah 53:1 to show that not all have obeyed the gospel, indicating a lack of faith, whereas Isaiah 53:1 is a prophecy lamenting disbelief, which Romans acknowledges but positions within the context of offering salvation through faith.
Isaiah 53:1: Who hath believed our report? and to whom is the arm of the LORD revealed? [report: or, doctrine?: Heb. hearing?]
Paradox #1
Romans 10:16 discusses the idea that not everyone obeys or believes the message of faith. A possible contradiction could be the tension between the idea of free will and the concept of faith being a necessary path to salvation. While individuals are supposed to choose their beliefs freely, the expectation or requirement to believe could be seen as conflicting with the notion of genuine personal choice.