Genesis

Thy fathers went down into Egypt with threescore and ten persons; and now the Lord thy God hath made thee as the stars of heaven for multitude.

And thou shalt speak and say before the Lord thy God, A Syrian ready to perish was my father, and he went down into Egypt, and sojourned there with a few, and became there a nation, great, mighty, and populous:

Then sent Joseph, and called his father Jacob to him, and all his kindred, threescore and fifteen souls.

And the Lord said unto Moses, Gather unto me seventy men of the elders of Israel, whom thou knowest to be the elders of the people, and officers over them; and bring them unto the tabernacle of the congregation, that they may stand there with thee.

And all the souls that came out of the loins of Jacob were seventy souls: for Joseph was in Egypt already.