Wes’s post on assurance is well worth reading very carefully, especially by FV proponents. I thought this paragraph especially helpful:
Now, here is the question I have for these men. Isn’t asking if someone is walking by faith by grace the same as asking, “Am I elect?” Aren’t the regenerate elect the only ones who walk by faith?
The mistake that many FV proponents make is in saying that because we can’t read anyone else’s heart, that therefore we can’t read our own hearts. I wouldn’t deny that it can be difficult to read our own hearts. The heart is deceitful. However, that does not mean that the heart is unreadable by its owner. So that means that yes, I can know that I am elect.