Malachi 3:4
“Then shall the offering of Judah and Jerusalem be pleasant unto the Lord, as in the days of old, and as in former years.”
But who may abide the day of his coming? and who shall stand when he appeareth? for he is like a refiner’s fire, and like fullers’ soap:
And he shall sit as a refiner and purifier of silver: and he shall purify the sons of Levi, and purge them as gold and silver, that they may offer unto the Lord an offering in righteousness.
Then shall the offering of Judah and Jerusalem be pleasant unto the Lord, as in the days of old, and as in former years.
And I will come near to you to judgment; and I will be a swift witness against the sorcerers, and against the adulterers, and against false swearers, and against those that oppress the hireling in his wages, the widow, and the fatherless, and that turn aside the stranger from his right, and fear not me, saith the Lord of hosts.
For I am the Lord, I change not; therefore ye sons of Jacob are not consumed.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“When thy sisters, Sodom and her daughters, shall return to their former estate, and Samaria and her daughters shall return to their former estate, then thou and thy daughters shall return to your former estate.”
“For in mine holy mountain, in the mountain of the height of Israel, saith the Lord God, there shall all the house of Israel, all of them in the land, serve me: there will I accept them, and there will I require your offerings, and the firstfruits of your oblations, with all your holy things.”
“Thus saith the Lord God; In the day when he went down to the grave I caused a mourning: I covered the deep for him, and I restrained the floods thereof, and the great waters were stayed: and I caused Lebanon to mourn for him, and all the trees of the field fainted for him.”
“Feed thy people with thy rod, the flock of thine heritage, which dwell solitarily in the wood, in the midst of Carmel: let them feed in Bashan and Gilead, as in the days of old.”
“And David said to all the congregation, Now bless the Lord your God. And all the congregation blessed the Lord God of their fathers, and bowed down their heads, and worshipped the Lord, and the king.”