Acts 28:24

Modern King James Version

And some indeed believed the things that were said, others did not believe.

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But the multitude of the city was divided. And part held with the Jews, and part with the apostles.

And disagreeing with one another, they were let go, Paul saying one word: Well did the Holy Spirit speak through Isaiah the prophet to our fathers,

For what? If some did not believe, will not their unbelief nullify the faith of God?