Who satisfieth thy mouth with good [things; so that] thy youth is renewed like the eagle's.
Ver. 5. Who satisfieth thy mouth] Heb. thy jaws, so that thou art top full, eating as long as eating is good. God alloweth thee an honest affluence of outward comforts; open thy mouth wide, and he will fill it, Psalms 81:10 .
So that thy youth is renewed like the eagle's] The eagle is of all birds the most vegetous and vivacious, renewing her youth and health, they say, at every ten years' end, by casting her old feathers, and getting new, till she be a hundred years old (Aquilae senectus. Proverb). Augustine observeth that when her bill is overgrown, that she cannot take in her meat, she beateth it against a rock, and so excutit onus rostri, she striketh off the cumbersome part of her bill, and thereby recovereth her eating. That which hindereth our renovation, saith he, the rock Christ taketh away, &c. See Isaiah 40:31 .