The power of prayer is twofold. One, it changes us. 1 John 5:14 lets us know that it is part of the process by which God causes our will to be brought into line with his will. Prayer not only changes us though, it also changes things. 1 John 5:15 lets us know that God hears and answers our prayers. Throughout scripture we see people healed, wisdom granted, enemies defeated, by God’s power in response to His people’s prayers.