Signs - From God or Satan?

I have presently started a study on "Signs - From God or Satan", in which I hope to at least present some scriptures related to this, and how they apply to us. I would like to get feedback from any who might have questions related to this, or who may have suggestions that could be included in the study. One can use the comment feature on Google.
docs.google.com/document/d/1Y6KSUeKPx6W_iMauxYMg7v7Moc4bYefINnM7hhld260/edit?usp=sharing