Exodus 1:5-7
Exodus 1: 5 to 7
5 The souls that came out of the line of Jacob numbered 70 in all, while Joseph was already in Egypt.
6 Then Joseph died, as did all his brothers and all that generation.
7 Yet Bnei-Yisrael were fruitful, increased abundantly, multiplied and grew extremely numerous — so the land was filled with them.