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.

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.