'Seventy' in the Bible

Jesus says to him, I say not to thee until seven times, but until seventy times seven.

Now after these things the Lord appointed seventy others also, and sent them two and two before his face into every city and place where he himself was about to come.

And the seventy returned with joy, saying, Lord, even the demons are subject to us through thy name.

And having called to him certain two of the centurions, he said, Prepare two hundred soldiers that they may go as far as Caesarea, and seventy horsemen, and two hundred light-armed footmen, for the third hour of the night.