Luke 4:25

Now I tell you of a certainty, that there were many widows in the days of Elias, in Israel, when the heaven was shut up three years and six months, so that a grievous famine was upon all the land.

Revelation 11:6

These have power to shut up the heaven, that no rain water the earth during the days of their prophecy: and they have power over the waters to turn them into blood, and to smite the earth with every plague, as often as they will.

Treasury of Scripture Knowledge

Summary

When the heaven is shut up, and there is no rain, because they have sinned against thee; yet if they pray toward this place, and confess thy name, and turn from their sin, when thou dost afflict them;

The heaven

There is no rain

Bible References

The heaven

Luke 4:25
Now I tell you of a certainty, that there were many widows in the days of Elias, in Israel, when the heaven was shut up three years and six months, so that a grievous famine was upon all the land.

There is no rain

Revelation 11:6
These have power to shut up the heaven, that no rain water the earth during the days of their prophecy: and they have power over the waters to turn them into blood, and to smite the earth with every plague, as often as they will.