Revelation 11:6
These have the power to shut up the sky, so that rain will not fall during the days of their prophesying; and they have power over the waters to turn them into blood, and to strike the earth with every plague, as often as they desire.
Luke 4:25
But I tell you truly, there were many widows in Israel in the days of Elijah, when the heaven was shut up three years and six months, and there was a great famine throughout all the land;
James 5:16-18
Therefore, confess your sins to one another, and pray for one another so that you may be healed. The prayer of a righteous man is powerful and effective.
Treasury of Scripture Knowledge
Summary
                            These have power to shut heaven, that it rain not in the days of their prophecy: and have power over waters to turn them to blood, and to smite the earth with all plagues, as often as they will.                        
                    Power
Bible References
Power
                                        Luke 4:25                                        
                                                                                                                                But I tell you truly, there were many widows in Israel in the days of Elijah, when the heaven was shut up three years and six months, and there was a great famine throughout all the land;
                                    
                                        James 5:16                                        
                                                            
                        Therefore, confess your sins to one another, and pray for one another so that you may be healed. The prayer of a righteous man is powerful and effective.