This NIV mistranslation says we have to believe all claims

of Jesus about himself, like that he is a Jew, that he is the bread of life etc. That is absurd. We don't need to learn such a lengthy list before we are saved, then almost nobody would be saved. But thankfully, when we examine the original Greek of John 8:24, there is no verb like 'claim' in that verse. So we don't have to know everything he claimed. We don't need to discuss if he claimed to be God for example. Instead, 8:24 refers back to verse 12, which is the preceding verse where Jesus said who he is, that he is the Light of the World. So verse 24 says if we don't believe that Jesus is he, namely the Light of the World, we will die in our sins.