Exodus 3.1-22: Fire is both a destructive force and a purifying force. What effect is has depends on how one is connected to the pure source of life. Moses discovers, through the burning bush, the purposes of the God of life, that seeks not to destroy him, but purify him and call him to a higher purpose. This is the purpose of God in our own life. We are the bush, that should burn, but doesn't. Not because of our strength, but the merciful fire of God that purifies us, but doesn't destroy us. This is the grace we find strength in.