'Descendants' in the Bible

The total number of Jacob’s descendants was 70; Joseph was already in Egypt.

“Keep this command permanently as a statute for you and your descendants.

These must be worn by Aaron and his sons whenever they enter the tent of meeting or approach the altar to minister in the sanctuary area, so that they do not incur guilt and die. This is to be a permanent statute for Aaron and for his future descendants.

They must wash their hands and feet so that they will not die; this is to be a permanent statute for them, for Aaron and his descendants throughout their generations.”