Malachi 4:5

“Behold, I will send you Elijah the prophet, etc.] Not the Tishbite, as the Septuagint version wrongly inserts instead of prophet; not Elijah in person, who lived in the times of Ahab; but John the Baptist, who was to come in the power and spirit of Elijah, (<420117>Luke 1:17) between whom there was a great likeness in their temper and disposition; in their manner of clothing, and austere way of living; in their courage and integrity in reproving vice; and in their zeal and usefulness in the cause of God and true religion; and in their famous piety and holiness of life; and in being both prophets; (see <401111>Matthew 11:11 14:5) and that he is intended is clear from (<401710>Matthew 17:10-13…”

“I send you Elijah--as a means towards your "remembering the law" (Mal 4:4). the prophet--emphatical; not "the Tishbite"; for it is in his official, not his personal capacity, that his coming is here predicted. In this sense, John the Baptist was an Elijah in spirit (Luk 1:16-17), but not the literal Elijah; whence when asked, "Art thou Elias?" (Joh 1:21), He answered, "I am not." "Art thou that prophet?" "No." This implies that John, though knowing from the angel's announcement to his father that he was referred to by Mal 4:5 (Luk 1:17), whence he wore the costume of Elijah, yet knew by inspiration that he did not exhaustively fulfil all that is included in this prophecy: that there is a…”

“Behold I will send (I send, as a future, proximate in the prophet’s mind) you Elijah the prophet - The Archangel Gabriel interprets this for us, to include the sending of John the Immerser. For he not only says Luke 1:17. that he shall “go before” the Lord “in the spirit and power of Elias,” but describes his mission in the characteristic words of Malachi, “to turn the hearts of the fathers to the children:” and those other words also, “and the disobedient to the wisdom of the just,” perhaps represent the sequel in Malachi, “and the hearts of the children to the fathers;” for their hearts could only be so turned by conversion to God, whom the fathers, patriarchs and prophets, knew, loved and…”

“Behold I will send - Though the spirit of prophecy cease for four hundred years, yet at the expiring of those years, you shall have one sent, as great as Elijah. Elijah - Namely John the Baptist, who came in the spirit and power of Elijah, Luk 1:17, and therefore bears his name. Before - That is, immediately before; so he was born six months before Christ, and began his preaching a few years before Christ began to exercise his publick office. The great and dreadful day of the Lord - This literally refers to the times of vengeance upon the Jews, from the death of Christ to the final desolation of the city and temple, and by accommodation, to the end of the world. Malachi 4:6”

“4:5-6 The second postscript warns that divine judgment of the wicked is indeed approaching, and promises divine deliverance and restoration of the righteous. • Elijah is a supreme example of a prophet of God who preached repentance with messages that were authenticated by signs and wonders (see Luke 1:17; Jas 5:17-18). Elijah was a forerunner of the day of the Lord (see Mal 3:1). The New Testament identifies John the Baptist as the prophet who prepared the way for Jesus the Messiah (see Matt 11:11-15; Luke 1:17).”

“I will: Mal 3:1; Isa 40:3; Mat 11:13, Mat 11:14, Mat 17:10-13, Mat 27:47-49; Mar 9:11-13; Luk 1:17, Luk 7:26-28, Luk 9:30; Joh 1:21, Joh 1:25 great: Mal 4:1; Joe 2:31; Act 2:19, Act 2:20; Rev 6:17 Malachi 4:6”