New American Standard Bible (NASB)
1 Corinthians 4
17 For this reason I have sent to you Timothy, who is my beloved and faithful child in the Lord, and he will remind you of my ways which are in Christ, just as I teach everywhere in every church.
18 Now some have become arrogant, as though I were not coming to you.
19 But I will come to you soon, if the Lord wills, and I shall find out, not the words of those who are arrogant but their power.
20 For the kingdom of God does not consist in words but in power.
21 What do you desire? Shall I come to you with a rod, or with love and a spirit of gentleness?
1 Corinthians 5
1 It is actually reported that there is immorality among you, and immorality of such a kind as does not exist even among the Gentiles, that someone has his father’s wife.
2 You have become arrogant and have not mourned instead, so that the one who had done this deed would be removed from your midst.
3 For I, on my part, though absent in body but present in spirit, have already judged him who has so committed this, as though I were present.
4 In the name of our Lord Jesus, when you are assembled, and I with you in spirit, with the power of our Lord Jesus,
5 I have decided to deliver such a one to Satan for the destruction of his flesh, so that his spirit may be saved in the day of the Lord Jesus.
6 Your boasting is not good. Do you not know that a little leaven leavens the whole lump of dough?