"Urged on by the queen, Ahab instituted a most diligent search for the hiding place of the prophet. To the surrounding nations, far and near, he sent messengers to seek for the man whom he hated, yet feared; and in his anxiety to make the search as thorough as possible, he required of these kingdoms and nations an oath that they knew nothing of the whereabouts of the prophet. But the search was in vain. The prophet was safe from the malice of the king whose sins had brought upon the land the denunciation of an offended God. PK 126.2"
"For in the time of trouble he shall hide me in his pavilion: in the secret of his tabernacle shall he hide me; he shall set me up upon a rock."
Ahab's relentless search for Elijah, and Elijah's protection, thematically parallels the idea of God hiding and protecting his people as expressed in Psalm 27:5.
"Failing in her efforts against Elijah, Jezebel determined to avenge herself by slaying all the prophets of Jehovah in Israel. Not one should be left alive. The infuriated woman carried out her purpose in the massacre of many of God's servants. Not all, however, perished. Obadiah, the governor of Ahab's house, yet faithful to God, “took an hundred prophets,” and at the risk of his own life, “hid them by fifty in a cave, and fed them with bread and water.” 1 Kings 18:4 . PK 126.3"
"For it was so, when Jezebel cut off the prophets of the Lord, that Obadiah took an hundred prophets, and hid them by fifty in a cave, and fed them with bread and water.)"
Ellen White directly references 1 Kings 18:4 in this passage.