Thy raiment waxed not old upon thee, neither did thy foot swell, these forty years.
Your clothing did not become old upon you nor did your feet swell these forty years.
During these forty years, your clothes didn’t wear out and your feet didn’t swell up.
Your garment, with which you were covered, has by no means decayed due to age, and your foot has not been worn down, even to this fortieth year,