(Proverbs 26:26 KJV) Whose hatred is covered by deceit, his wickedness shall be shewed before the whole congregation.
“Hatred” (8135) and “deceit” (guile NASB) (4860) go together. The first is pretty straightforward. It is always translated as a form of hate in both the KJV and NASB. This seems to be the most common Hebrew word used. You find a lot of condemnation of this emotion and attitude. If you have anything with Strong’s numbers system you can follow it along with the more common verb “hate” (8130).
People follow a long convoluted road to cover up that hatred. That is where the “guile” (4860) comes in. This is the only place in the Old Testament that this Hebrew word is used. The English word is defined as sly and cunning. The implication is dishonesty. It is not just a matter of being clever or creative.
So? Beware. Just because someone says something nice about you or does something nice for you does not mean they have your best interests at heart. It is also a good reminder in a season of political campaigns.