John Trapp on Psalms 73:18

Verſ. 18. Surely thou didſt ſet them in ſlippery places] Where they can have no more certainty than if they went upon the ſmootheſt Ice, or walked upon a mine of gun-powder. The Turks ſeeing ſo few of their Viſiers to dye in their beds, have taken up this proverb, Hee that is even in the greateſt office, is but a ſtatue of glaſs.

Thou caſtedſt them down into destruction] Improbos ex magna proſperitate tanquam ex Tarpeia rupe in barathrum perditionis praecipitaſti. Haman for inſtance.