1 Kings 18:37
35 The water flowed down all sides of the altar and filled the trench. 36 When it was time for the evening offering, Elijah the prophet approached the altar and prayed: “O Lord God of Abraham, Isaac, and Israel, prove today that you are God in Israel and that I am your servant and have done all these things at your command. 37 Answer me, O Lord, answer me, so these people will know that you, O Lord, are the true God and that you are turning their hearts back.53” 38 Then fire from the Lord fell from the sky. It consumed the offering, the wood, the stones, and the dirt, and licked up the water in the trench. 39 When all the people saw this, they threw themselves down with their faces to the ground and said, “The Lord is the true God! The Lord is the true God!”
Malachi 4:6
4 “Remember the law of my servant Moses, to whom at Horeb I gave rules and regulations for all Israel to obey. 5 Look, I will send you Elijah the prophet before the great and terrible day of the Lord arrives. 6 He will turn the hearts of the fathers to the sons, and the hearts of the sons to their fathers10, so that I will not come and strike the earth with judgment.”
Notes and References
"... בוּשׁ (shub) is used 371 times in hiphil form and five times in hophal form within the Old Testament. Hiphil verbs normally serve as the active causative of qal verbs, and hophal verbs serve as a passive counterpart to hiphil verbs. For example, “to cause to repent” (hiphil) or “to be caused to repent” (hophal). The hiphil of בוּשׁ (shub) “may refer to emotions, plans, deeds, and the like, to express the actions of a person, with the particular meaning of ‘making someone change’ (his mind, plans)” as in Job 9:12, 11:10 and 23:13. There are also examples of בוּשׁ (shub) used in the context of covenantal relationships in hiphil form, which will be briefly discussed under the “בוּשׁ (shub) in covenantal context” heading in this chapter. Donnell summarized eleven usages of בוּשׁ (shub) in hiphil form (Malachi 4:6) ... שַׁטָנ (natash) is used in 1 Kings 8:57 and can mean “forsake”, “May the LORD our God be with us as he was with our ancestors; may he never leave us or forsake us”. Fourth, בַבָס (sabab) is used in 1 Kings 18:37 and can mean “turning”, “... you, LORD, are God, and that you are turning their hearts back again”. And finally, סַאָמָ (ma’ac) is used in Jeremiah 7:29 and can mean to “refuse’ or “reject”, “... for the LORD has rejected and abandoned this generation under his wrath” ..."
Marsh, Allen Bythel How בוּשׁ and םַחָנ Contribute to Understanding the Meaning of Jeremiah 42:8, 15:6-7, 18:7-10 and 26:3, 13 and 19 (pp. 104-106) South African Theological Seminary, 2018