"One of the greatest needs other than preaching the gospel and true conversion is to teach on the attributes of God, because people basically don't know Him.
If I were to go into most churches and preach on the attributes of God, what would happen about midway through that week is you would have faithful church members who have been there for forty years who would stand up and say,
'That's not my god, I could never love a god like that,'
... even though I'm just preaching the historical Christian view of God." -Paul Washer from the sermon I am Under Obligation