Acts 5:10

And she fell down immediately at his feet, and gave up the ghost: and the young men came in and found her dead, and they carried her out and buried her by her husband. And great fear came upon the whole church, and upon all that heard these things.

The proper understanding of this was outlined by McGarvey thus:

We regard her death, like that of her husband, wrought independently of the power lodged in the apostle; and it seems to have been so regarded by the authorities in Jerusalem ... no charge of murder was preferred, as might have been the case if the act had been understood differently.[20]

Fear came upon the whole church ... See under Acts 5:5. "The occurrence of the word `church' in Acts 5:11 is its first occurrence in the original text of Acts."[21] The fear, mentioned twice in this narrative, came not only upon Christians, but upon all who heard what had happened. Dummelow is also among those writers who are unwilling to accept a judgment of eternal damnation upon this unfortunate couple. He said, "It is not necessary to suppose that Ananias and Sapphira were eternally lost. After this terrible punishment, they may have been forgiven."[22] However, this writer believes that such a speculation is dangerous. It is best to leave unresolved those questions upon which there is not a clear word from the Lord.

[20] J. W. McGarvey, op. cit., p. 86.

[21] F. F. Bruce, op. cit., p. 116.

[22] J. R. Dummelow, op. cit., p. 825.