1 Samuel 12:16-18

“Now stand here and see the great thing the LORD is about to do. You know that it does not rain at this time of the year during the wheat harvest. I will ask the LORD to send thunder and rain today. Then you will realize how wicked you have been in asking the LORD for a king!” So Samuel called to the LORD, and the LORD sent thunder and rain that day. And all the people were terrified of the LORD and of Samuel.