"The Lord Yahweh has sworn by himself," says Yahweh, the God of hosts: "I abhor the pride of Jacob, And detest his fortresses. Therefore I will deliver up the city with all that is in it.
Therefore (And) I will deliver up - Originally, “shut up” (Leviticus 14:23; Leviticus 13:4-5, ...), then, “shut up in the hands of,” so that he should have no escape. Here, where the enemy is not spoken of, it may mean, that God “shut up the city,” so that there should be no going out or coming in, in the straithess of the siege, whereupon follows the fearful description of the ravages of the pestilence. “The city” is, what was to them, above others, “the” city, the place of their luxury pride and boast, where lay their strength, Samaria.