I just got off the phone with my father. It went better than I thought it would. Of course he asked if I was doing anything in the "truth," and I just simply said, that I attend a church, and that I didn't want to take the conversation that way. Suprisingly, he went along with it.
Overall, the conversation was good and pleasant. It was good to hear his voice again.
Thanks for all your suggestions. At least I'll have a good night's sleep for the first time in about two weeks.