Malachi 4

Malachi 4:2:
​But to you who fear My name The Sun of Righteousness shall arise With healing in His wings; And you shall go out And grow fat like stall-fed calves.

B​eloved, if Jesus Christ were not the great Lord-Keeper of his Father's wardrobe, why should those names and titles be given to him, which you find so frequently in Scripture? Cast your eyes where you will, you shall hardly look upon any thing, but Jesus Christ has taken the name of that upon himself.

If you cast your eyes up to heaven in the day, and behold the sun, he is called "the Sun of Righteousness," Mal 4:2.

If you cast your eyes in the night upon the stars, or in the morning upon the morning star, he is called "the bright Morning Star," Rev. 22:16.

If you behold your own body, he is called the head, and the church the body, Col. 1:18.

If you look upon your own clothes, he is called your raiment; "Put ye on the Lord Jesus," Rom. 13:14.

If you behold your food, he is called bread, "the Bread of Life," John 6:35.

If you look upon your houses, he is called a door, John 10:9.

If you look abroad into the fields, and behold the cattle of the fields, he is called the Good Shepherd, John 10:11; he is called the Lamb, John 1:29; he is called the fatted calf, Luke 15:23.

If you look upon the waters, he is called a fountain; the blood of Christ a fountain, Zech. 13:1.

If you look upon the stones, he is called "a Corner Stone," Isa. 28:16.

If you look upon the trees, he is called "a Tree of Life," Prov. 3:18.

What is the reason of this? Surely, not only to way-lay your thoughts, that wheresoever you look, still you should think of Christ; but to show, that in a spiritual way and sense, he is all this unto the soul.
 --William Bridge, Works, 1:261–62

Malachi 4:3-6:
3 You shall trample the wicked,
For they shall be ashes under the soles of your feet
On the day that I do this,”
Says the Lord of hosts.
4 “Remember the Law of Moses, My servant,
Which I commanded him in Horeb for all Israel,
With the statutes and judgments.
5 Behold, I will send you Elijah the prophet
Before the coming of the great and dreadful day of the Lord.
6 And he will turn
The hearts of the fathers to the children,
And the hearts of the children to their fathers,
Lest I come and strike the earth with a curse.”

The day of the Lord will be a time of fierce judgment on the earth, and the wicked will be burned like stubble. In scripture, "fire" is often associated with judgment, for it is a symbol of the holy wrath of God.
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