'Rain' in the Bible

"When heaven remains closed, and there is no rain because they have sinned against you, and they pray in the direction of this place, confessing your name and turning from their sin when you afflict them,

then hear in heaven and forgive the sin of your servants and of your people Israel. Indeed, teach them the best way to live and send rain on your land that you have given to your people as an inheritance.

Elijah the foreigner, who was an alien resident from Gilead, told Ahab, "As the LORD God of Israel lives, in whose presence I'm standing, there will be neither dew nor rain these next several years, except when I say so."

But after a while, the brook dried up because there had been no rain in the land.

because this is what the LORD God of Israel says: "That jar of flour will not run out, nor will that bottle of oil become empty until the very day that the LORD sends rain on the surface of the ground.'"

Quite some time later three years later! this message from the LORD came to Elijah: "Go visit Ahab, and I'll send some rain to the surface of the ground."