Isaiah 33:23

23.Thy cords were loosed. He directs his discourse to the Assyrians, in whose person he likewise addresses all the enemies of the Church. After having promised to the Church such stability as shall never be disturbed, he rebukes the foolish confidence with which ungodly men are puffed up; as if they had been so deeply rooted as to reach the center of the earth. Although, during the intoxicating influence of prosperity, they imagine that their wealth is exceedingly secure, he foretells that ruin will quickly overtake them, because they are not supported by the hand of God.

He follows out the comparison which he had employed at the commencement. Having said that the Church resembles a place that is fortified and surrounded by very broad rivers which do not admit the approach of enemies, he now compares the condition of wicked men to ships; by which he means that they have no solid foundation, though they appear to be formidable, and though they are madly eager and fiercely cruel, and imagine that none can resist their rage. Although, therefore, they have long ships and ships of burden, by which they may be said to form a union between countries placed at great distances from each other, and to make themselves masters of sea and land, still they shall have no permanency or stability. The Lord will sink their ships, will take away their ropes and masts, and will involve them in a universal shipwreck. Let us not therefore be terrified by their fury and insolence, but let us look for the day of the Lord, when he shall make their rage and violence to fall on their own heads.