An alcoholic swears off the bottle. Three days later he grabs another case of beer at the corner gas station. A husband looses his temper with his wife again. He hates himself for it. Why does he keep losing his temper? Why can't he change? As Christians, we become frustrated when we want to obey Christ but we keep drifting away. Where does the power come from for lasting change? In the second half of John 14, Jesus introduces his disciples, and us, to the Holy Spirit and the crucial role he plays in changing our life.