What is the meaning of Malachi 3:1?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

“Behold, I will send My messenger, who will prepare the way before Me. Then the Lord whom you seek will suddenly come to His temple—the Messenger of the covenant, in whom you delight—see, He is coming,” says the LORD of Hosts.

Berean Standard Bible (BSB)

“Behold, I send my messenger, and he will prepare the way before me; and the Lord, whom you seek, will suddenly come to his temple; and the messenger of the covenant, whom you desire, behold, he comes!” says Yahweh of Armies.

World English Bible (WEB)

Behold, I will send{H7971}{(H8802)} my messenger{H4397}, and he shall prepare{H6437}{(H8765)} the way{H1870} before{H6440} me: and the Lord{H113}, whom ye seek{H1245}{(H8764)}, shall suddenly{H6597} come{H935}{(H8799)} to his temple{H1964}, even the messenger{H4397} of the covenant{H1285}, whom ye delight{H2655} in: behold, he shall come{H935}{(H8804)}, saith{H559}{(H8804)} the LORD{H3068} of hosts{H6635}.

Strong's King James

(1) Behold, I'm going to send My messenger and he will prepare the way before Me. And the אָדוֹן Adonai whom you seek will suddenly come to His Palatial Temple, the covenant Messenger in whom you delight! See, He's coming," says * יהוה Yahweh-Tzva'ot.

The F.O.G*

The F.O.G Paraphrase

Lo, I am sending My messenger, And he hath prepared a way before Me, And suddenly come in unto his temple Doth the Lord whom ye are seeking, Even the messenger of the covenant, Whom ye are desiring, Lo, he is coming, said Jehovah of Hosts.

Young's Literal Translation