17 The seventy returned with joy, saying, “Lord, even the demons are subject to us in your name!” 18 And he said to them, “I saw Satan fall like lightning from heaven. 19 Behold, I have given you authority to tread upon serpents and scorpions, and over all the power of the enemy; and nothing shall hurt you. 20 Nevertheless do not rejoice in this, that the spirits are subject to you; but rejoice that your names are written in heaven.”