Just recently I have gotten back into my lectures from Pastor John on the five points of Calvinism or TULIP.
P--Perseverance of the Saints
They have been great. I just finished total depravity and am listening to irresistible grace. (He takes them in a different order.) Whether or not you think you're a Calvinist or even if you have no idea what that is, these would be great lectures for you. I just thought of posting on this after watching the video below. Check it out. It is funny..