SD 1622 - Evil spirits tell very tall tales, and they lie.

SD 1622
When spirits begin to speak with a person,
one must take care not to believe them at all,
for almost everything they say, they have made up, and they are lying.
If for example they are allowed to tell what heaven is like,
and how matters stand in the heavens,
they would tell so many lies, with great assurance,
that the person would be astounded.
Therefore, I was not allowed to give credence to the spirits
who were speaking in regard to anything they told.
(March 20, 1748)
For they are very fond of fabricating,
and whenever any topic of conversation is raised,
they think they know all about it,
and express their opinions about it one after the other,
as if they knew exactly;
and if anyone then listens to them and believes them,
then they press on, and in various ways trick and mislead the person.
. . . So such persons must take care not to believe them,
this being the reason why the condition
of speaking with spirits on this planet is most dangerous,
unless one has true belief.
They bring on such a strong persuasion
that it is the Lord Himself speaking and commanding,
that the person cannot help but believe, and obey.