“Judah has been faithless.
An abomination
Has been committed
In Israel,
As well as in Jerusalem.
Judah has profaned
The sanctuary of Yahweh
That he loves.
He has married
The daughter of a foreign god.
May Yahweh cut off
From the tents of Jacob
Anyone who does this!
May Yahweh cut off
Anyone who witnesses,
Who answers,
Who brings an offering
To Yahweh of hosts!”
Yahweh, via Malachi, noted that Judah had not been faithful. There was an abomination in Jerusalem itself. Judah had profaned the sanctuary of Yahweh. Judah had married the daughter of a foreign god. Perhaps this indicates a non-Jewish woman. Thus, Yahweh was going to cut them off from the tents of Jacob. Anyone involved in any kind of false worship of a foreign god would be cut off from being a witness or bringing offerings to Yahweh. They should be excommunicated.
Eugene Finnegan Bible Project 