Thomas Aquinas

As to the loneliness of the ways: the ways are made desolate: the ways of Zion mourn, because there are none that come to the solemn feast (Lam 1:4); as to the breaking of covenants: the covenant is made void, namely, the covenant by which Sennacherib had insured Ezechias, and therefore, he has rejected, as if despising their friendship, he has not regarded, because of the pride of his heart: he swallows the ground, neither doth he regard when the noise of the trumpet sounds (Job 39:24).

Commentary on Isaiah ↗