Thematic Bible: A sign of divine anger

Is it not wheat harvest to-day? I will call unto Jehovah, that he may send thunder and rain; and ye shall know and see that your wickedness is great, which ye have done in the sight of Jehovah, in asking you a king. So Samuel called unto Jehovah; and Jehovah sent thunder and rain that day: and all the people greatly feared Jehovah and Samuel.