Luke 4:25

I tell you of a truth, Many widows were in Israel, in the days of Elijah, when the heaven was shut up three years and six months, while a great famine was thro' all the land.

Revelation 11:6

These have power to shut heaven, that it rain not in the days of their prophesying, and have power over the waters, to turn them into blood, and to smite the earth with all plagues 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
I tell you of a truth, Many widows were in Israel, in the days of Elijah, when the heaven was shut up three years and six months, while a great famine was thro' all the land.

There is no rain

Revelation 11:6
These have power to shut heaven, that it rain not in the days of their prophesying, and have power over the waters, to turn them into blood, and to smite the earth with all plagues as often as they will.