'Seventy two' in the Bible

Now after these things [happened] the Lord appointed seventy-two other disciples [Note: Some ancient manuscripts say "seventy." This group would have been in addition to the twelve. See Luke 9:1], and sent them two by two on ahead of Him into every town and locality that He planned to visit.

So, the seventy-two disciples returned with joy, saying, "Lord, even the evil spirits submitted to us in your name [i.e., by your authority]."