Psalms 48:3 - Joseph Benson’s Commentary on the Old and New Testaments

God is known To his people, by sensible and long experience; in her palaces In the habitations of the city, and not only in the cottages, or meaner dwellings, but in the palaces: the princes and great men have recourse to God, and seek help from him. Possibly he may point at the king's palace and the temple, which was the palace of the King of heaven; which two palaces God did in a singular manner protect, and, by protecting them, protected the whole city and people. For a refuge Under whose shadow his people are more safe and secure than other cities are with their great rivers and impregnable fortifications. “Thus the great Founder of the church is also her protector and defender. The dependance of the new Jerusalem, like that of the old, is not in man, or in the arm of flesh, but in God, who resideth in the midst of her. For, surely, unless he kept the city, the watchmen in the towers would wake but in vain.” Horne.