Esias 5:30

30 And he shall roar on account of them in that day, as the sound of the swelling sea; and they shall look to the land, and, behold, thick darkness in their perplexity.

Esias 5:30 In-Context

28 Whose arrows are sharp, and their bows bent; their horses' hoofs are counted as solid rock: their chariot-wheels are as a storm.
29 They rage as lions, and draw nigh as a lion's whelps: and he shall seize, and roar as a wild beast, and he shall cast forth, and there shall be none to deliver them.
30 And he shall roar on account of them in that day, as the sound of the swelling sea; and they shall look to the land, and, behold, thick darkness in their perplexity.

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