I present a cordless drill and explain that it represents salvation. I then start drilling a board by turning the drill by hand round and round without turning on the drill. After doing this for a couple of minutes I ask the audience if I’m doing something wrong. They all shout “turn on the drill!” I explain that this is like trying to live out your salvation without God’s strength. It can not be done in your own strength. I then plug in the battery pack and then I can easily drill the hole though the board. I go on to explain that many Christians have the power of God in their lives to live a holy life but do not fully commit themselves to God. It is like not fully plugging in the battery pack. If it is not fully plugged in you will not have any power.