Have you not come to know or have you not heard? Jehovah, the Creator of the extremities of the earth, is a God to time indefinite. He does not tire out or grow weary. There is no searching out of his understanding.”​—Isaiah 40:27, 28.d

They are reminded of things that they should know, if not from personal experience, then at least from information that has been handed down. Jehovah is able and willing to deliver his people. He is the eternal God and the Creator of the entire earth. Hence, he still possesses the power he displayed in creation, and not even mighty Babylon is beyond his reach. Such a God cannot grow tired and fail his people. They ought not to expect to be able fully to grasp Jehovah’s doings, for his understanding​—or insight, discernment, and perception—​is beyond their comprehension.