Charles H. Spurgeon on Psalms 73:18

They are but exalted, as the shellfish by the eagle, according to the naturalist, to be thrown down on some rock and devoured. Their most glorious prosperity is but like a rainbow, which showeth itself for a little time in all its gaudy colours, and then vanisheth. The Turks, considering the unhappy end of their viziers, use this proverb, "He that is in the greatest office is but a statue of glass." Wicked men walk on glass or ice, thou hast set them in slippery places; on a sudden their feet slip —they fall, and break their necks. George Swinnock.