Prayer moves the hand of GOD.
2 CHRONICLES 7:13-14
13 At times I might shut up the heavens so that no rain falls, or command grasshoppers to devour your crops, or send plagues among you.
14 Then if my people who are called by my name will humble themselves and pray and seek my face and turn from their wicked ways, I will hear from heaven and will forgive their sins and restore their land.
Amen