"Calls to Repentance The mercy of God in sparing so many lives during the dreadful calamity befalling San Francisco and near- by communities, was pointed out by Mrs. White as constituting a strong appeal to all classes to recognize the supreme rulership of Jehovah and the binding claims of His law. She urged that evangelistic efforts be carried on in the cities about the bay, in order that the people might have every opportunity to learn the meaning of the judgments coming upon the inhabitants of the earth. LS 414"
"And Jonah began to enter into the city a day’s journey, and he cried, and said, Yet forty days, and Nineveh shall be overthrown. So the people of Nineveh believed God, and proclaimed a fast, and put on sackcloth, from the greatest of them even to the least of them. For word came unto the king of Nineveh, and he arose from his throne, and he laid his robe from him, and covered him with sackcloth, and sat in ashes. And he caused it to be proclaimed and published through Nineveh by the decree of the king and his nobles, saying, Let neither man nor beast, herd nor flock, taste any thing: let them not feed, nor drink water: But let man and beast be covered with sackcloth, and cry mightily unto God: yea, let them turn every one from his evil way, and from the violence that is in their hands. Who can tell if God will turn and repent, and turn away from his fierce anger, that we perish not? And God saw their works, that they turned from their evil way; and God repented of the evil, that he had said that he would do unto them; and he did it not."
Both passages deal with calls to repentance in the face of impending judgment. Jonah's preaching led to Nineveh's repentance and God's sparing of the city. Similarly, EGW's statement emphasizes the need for evangelistic efforts and repentance in light of calamities, suggesting that people should recognize God's rulership and obey His law. The connection is thematic and meaningful.
"“I am instructed that when the Lord's time comes, should no change have taken place in the hearts of proud, ambitious human beings, men will find that the hand that has been strong to save will be strong to destroy. No earthly power can stay the hand of God. No material can be used in the erection of buildings that will preserve them from destruction when God's appointed time comes to send retribution on men for their insolence and their disregard of His law.” [Quoted in The Review and Herald, April 26, 1906 .] LS 414.1"
"Therefore as the fire devoureth the stubble, and the flame consumeth the chaff, so their root shall be as rottenness, and their blossom shall go up as dust: because they have cast away the law of the Lord of hosts, and despised the word of the Holy One of Israel."
Both passages speak of God's judgment as a consequence of rejecting His law. Isaiah 5:24 describes the specific consequences of rejecting God's law, while the EGW passage speaks more generally about destruction coming upon those who disregard God's law. The connection is thematic and meaningful.