NOTES for Act 26:8
The apostle Paul asks this question of King Agrippa, who is half-believing, like most people now living on earth. Such people think that God, apparently, exists, but their ideas about what He is like, what relationships with Him can be, and what this means for human life are at times very far from true piety.
How precisely Paul formulates his rhetorical question to one of these people, a question that does not demand an immediate answer but makes one think. He does not call God's existence into question, nor does he prove it. More than that, he does not ask King Agrippa's opinion about God's omnipotence; otherwise he would have asked, "Why do you consider it impossible..." No, for God everything is certainly possible. But one can safely regard it as unbelievable that God would do something contrary to His purpose, His will. If death was created by God, if such is His purpose for human destiny, then the resurrection of the dead is completely unbelievable. But Scripture affirms that death is the consequence of the fall (Gen 3), and through the prophets, not by chance does Paul ask Agrippa the question in v. 27, God reveals that He does not desire human death: "As I live, says the Lord God, I have no pleasure in the death of the wicked, but that the wicked turn from his way and live" (Ezek. 33:11). And for God it is quite normal to set right what we have distorted, so the resurrection of the dead cannot in any way be considered unbelievable.