"“The angel of Jehovah said unto Elijah, Go down with him: be not afraid of him. And he arose, and went down with him unto the king. And he said unto him, Thus saith Jehovah, Forasmuch as thou hast sent messengers to inquire of Baal-zebub, the god of Ekron, is it because there is no God in Israel to inquire of His word? therefore thou shalt not come down from the bed whither thou art gone up, but shalt surely die.” PK 209.1 During the father's reign, Ahaziah had witnessed the wondrous works of the Most High. He had seen the terrible evidences that God had given apostate Israel of the way in which He regards those who set aside the binding claims of His law. Ahaziah had acted as if these awful realities were but idle tales. Instead of humbling his heart before the Lord, he had followed after Baal, and at last he had ventured upon this, his most daring act of impiety. Rebellious, and unwilling to repent, Ahaziah died, “according to the word of the Lord which Elijah had spoken.” PK 209.2"
"And the angel of the Lord said unto Elijah, Go down with him: be not afraid of him. And he arose, and went down with him unto the king."
EGW directly quotes 2 Kings 1:15.