What does 1 Samuel 11:9 mean?

They told the messengers who had come, 'Tell the people of Jabesh-gilead, 'Help is coming by tomorrow, when the sun is hot.'' The messengers went and gave the good news, and everyone was relieved. 1 Samuel 11:9 - Modern Text Bible

(The people of Jabesh hear that rescue is on the way, and their fear turns to hope.)