A faithful Christian sister named Yoshiko received bad news. Her doctor said that she had only a few months to live. How did she react? Yoshiko recalled a favorite Bible verse, today’s text. She then calmly told her doctor that she was not afraid, because Jehovah was grasping her hand. The comforting message found in that verse helped our dear sister to trust in Jehovah completely. That same verse can help us remain calm when dealing with severe trials. Initially, Jehovah had Isaiah record those words to comfort the Jews who would later be taken to Babylon as exiles. However, Jehovah had that message preserved for the benefit of not only the Jewish exiles but also all his people since that time. (Isa. 40:8; Rom. 15:4) Today, we live in “critical times hard to deal with,” and more than ever, we need the encouragement found in the book of Isaiah.​—2 Tim. 3:1. w19.01 2 ¶1-2