'Throughout Their Generations' in the Bible

So they shall wash their hands and their feet, that they die not: and it shall be a statute forever to them, even to him and to his descendants throughout their generations.

Therefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant.

And you shall anoint them, as you did anoint their father, that they may minister unto me in the priest's office: for their anointing shall surely be an everlasting priesthood throughout their generations.