Latter-day Saints
believe that, as Joseph Smith said on the 8th February 1843, “a
Prophet was a Prophet only, when he was acting as such” (source).
While they may not always allow for this for Latter-day Saints, some
anti-Mormon authors will admit pretty much the same for the biblical prophets.
As one Evangelical wrote:
God did not forbid people to criticize his
anointed ones. For example, in Genesis 20:7 God warned Abimelech the king of
Gerar, to restore Sarah to Abraham, “for he is a prophet.” But this did not
prevent Abimelech from questioning Abraham’s deception (vv. 9-10). It is one
thing to do violence against God’s anointed; it is another thing to criticize
them when they err. Even true prophets,
when they are not speaking prophetically, can be mistaken (e.g., 2 Sam.
7:3, cf. vv. 4-17). (Robert M. Bowman, Orthodoxy
and Heresy: A Biblical Guide to Doctrinal Discernment [Grand Rapids, Mich.:
Baker Book House, 1992], 36-37, emphasis added)