'Throughout Their Generations' in the Bible

they must wash their hands and their feet so that they do not die. And this will be a perpetual ordinance for them and for their descendants throughout their generations."

The Israelites must keep the Sabbath by observing the Sabbath throughout their generations as a perpetual covenant.

and anoint them just as you anointed their father, so that they may minister as my priests; their anointing will make them a priesthood that will continue throughout their generations."