Because ye despise this word, and trust in oppression In the wealth which you have gotten by oppression, whereby you now think to procure Egyptian succours; and perverseness In your perverse and rebellious course of sending to Egypt for help. This iniquity shall be to you as a breach, &c. Like a wall, which is high, and seems to be strong, but, swelling out in some parts, upon the least accident falleth down suddenly to the ground. Such shall be the issue of your high and towering confidence in Egypt. And he shall break it Namely, God, or the enemy whom God will send against you.
Related Commentaries of Isaiah 30:12
Isaiah 30:12-14
12 Wherefore thus saith the Holy One of Israel, Because ye despise this word, and trust in oppressionb and perverseness, and stay thereon:
13 Therefore this iniquity shall be to you as a breach ready to fall, swelling out in a high wall, whose breaking cometh suddenly at an instant.
14 And he shall break it as the breaking of the potters' vessel that is broken in pieces; he shall not spare: so that there shall not be found in the bursting of it a sherd to take fire from the hearth, or to take water withal out of the pit.