In the fortieth year, on the first day of the eleventh month, Moses spoke to the children of Israel, according to all that the Lord had commanded him to give to them,

You shall remember all the way which the Lord your God has led you in the wilderness these forty years, that He might humble you, testing you, to know what was in your heart, whether you would keep His commandments or not.

Your clothes

Your clothing did not wear out on you, nor did your foot swell these forty years.

“Indeed, forty years You provided for them in the wilderness and they were not in want;
Their clothes did not wear out, nor did their feet swell.

Do not worry then, saying, ‘What will we eat?’ or ‘What will we drink?’ or ‘What will we wear for clothing?’

And thy shoe

and worn-out and patched sandals on their feet, and worn-out clothes on themselves; and all the bread of their provision was dry and had become crumbled.

or a bag for your journey, or even two coats, or sandals, or a staff; for the worker is worthy of his support.

General references

Moses was eighty years old and Aaron eighty-three, when they spoke to Pharaoh.