Jerome : And it will sound over him in that day like the roaring of the sea: we will look to the land, and behold, darkness of distress, and the light is obscured by its shadow. And the shouting of the victorious army is likened to the waves of the sea. From which it should be noted whenever the sound of the sea is referred to in the Scriptures, what it signifies. Therefore, when the Roman army arrives, takes plunder, and there is no one to rescue, the Prophet joins the people with sympathetic affection and says: We will look upon the earth and behold the darkness of affliction. For we dare not look upon the sky, whose inhabitant we offend, and our light, which we always had in God, is obscured by the darkness of afflictions. — Commentary on Isaiah