Charles H. Spurgeon on Psalms 48:7

Thou breakest the ships of Tarshish with an east wind. As easily as vessels are driven to shipwreck, dost thou overturn the most powerful adversaries; or it may mean the strength of some nations lies in their ships, whose wooden walls are soon broken; but our strength is in our God, and therefore, it fails not; or there may be another meaning, though thou art our defence, yet thou takest vengeance on our inventions, and while thou dost preserve us, yet our ships, our comforts, our earthly ambitions, are taken from us that we may look alone to thee. God is seen at sea, but he is equally present on land. Speculative heresies, pretending to bring us wealth from afar, are constantly assailing the church, but the breath of the Lord soon drives them to destruction. The church too often relies on the wisdom of men, and these human helps are soon shipwrecked; yet the church itself is safe beneath the care of her God and King.