17
And whatever you do (no matter what it is) in word or deed, do everything in the name of the Lord Jesus and in (dependence upon) His Person, giving praise to God the Father through Him.
19
Behold! I have given you authority and power to trample upon serpents and scorpions, and (physical and mental strength and ability) over all the power that the enemy (possesses); and nothing shall in any way harm you.