Thomas Aquinas

Third, the expression of both of these effects: and the inhabitants of this isle, that is, Jerusalem, which was incessantly beaten by waves of persecution, like an isle beaten by the waves of the sea. Lo this was our hope, in which their confusion is expressed, and how shall we be able to escape, in which their fear is expressed, below: the strength of Pharaoh shall be to your confusion (Isa 30:3).

Commentary on Isaiah ↗