1 Corinthians 4:19-21
4:19 But I will come to you soon, if the Lord is willing, and I will find out not only the talk of these arrogant people, but also their power.
4:20 For the kingdom of God is demonstrated not in idle talk but with power.
4:21 What do you want? Shall I come to you with a rod of discipline or with love and a spirit of gentleness?