Maleakhi 4:5

4:5 Look, I will send you Elijah ¹  the prophet before the great and terrible day of the Lord arrives.

Matius 11:14

11:14 And if you are willing to accept it, he is Elijah, who is to come.

[4:5]  ¹ sn I will send you Elijah the prophet. In light of the ascension of Elijah to heaven without dying (2 Kgs 2:11), Judaism has always awaited his return as an aspect of the messianic age (see, e.g., John 1:19-28). Jesus identified John the Baptist as Elijah, because he came in the “spirit and power” of his prototype Elijah (Matt 11:14; 17:1-13; Mark 9:2-13; Luke 9:28-36).