“Arise with Healing in His Wings”
The words of Malachi were particularly relevant to Jesus’ Nephite listeners, inasmuch as they had just come through a similar sequence of events—the destruction of the wicked (see 3 Nephi 9:3-12), the preservation of the “more righteous part” (see 3 Nephi 9:13), and the marvelous appearance of the Savior, who literally came with “healing in his wings” (3 Nephi 17:6-10).
Using that as a backdrop, the Savior quoted Malachi’s prophecy concerning the last days and the Second Coming. The image of “healing in his wings” is the promise afforded the righteous in direct contrast to the curse hat awaits the wicked, which he had previously cited.