Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the LORD: Behold, I will send you Elijah the prophet - This is meant alone of John the Baptist, as we learn from Luke 1:17 (note), in whose spirit and power he came.
Related Commentaries of Malachi 4:5
Malachi 4:5
5 Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the LORD: