Esias 30:32

32 And it shall happen to him from every side, they from whom their hope of assistance was, in which he trusted, themselves shall war against him in turn with drums and with harp.

Esias 30:32 In-Context

30 And the Lord shall make his glorious voice to be heard, and the wrath of his arm, to make a display with wrath and anger and devouring flame: he shall lighten terribly, and as water and violent hail.
31 For by the voice of the Lord the Assyrians shall be overcome, by the stroke wherewith he shall smite them.
32 And it shall happen to him from every side, they from whom their hope of assistance was, in which he trusted, themselves shall war against him in turn with drums and with harp.
33 For thou shalt be required before time: has it been prepared for thee also to reign? nay, God has a deep trench, wood piled, fire and much wood: the wrath of the Lord as a trench kindled with sulphur.

The Brenton translation of the Septuagint is in the public domain.