Luke 4:25

I assure you, though there were many widows in Israel, when the heaven had furnished no rain for three years and a half, and a great famine spread through all the land:

Revelation 11:6

during their prophecy they have power to prevent any rain descending from heaven: their power extends over waters to turn them to blood, and to smite the earth with what plagues they please.

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 assure you, though there were many widows in Israel, when the heaven had furnished no rain for three years and a half, and a great famine spread through all the land:

There is no rain

Revelation 11:6
during their prophecy they have power to prevent any rain descending from heaven: their power extends over waters to turn them to blood, and to smite the earth with what plagues they please.