2 Corinthians 13:2
I told you the last time I was there, and now before returning, I [again] warn those who have sinned in the past as well as the rest, that if I come again I will not spare you [i.e., I will rebuke and discipline you],
2 Corinthians 1:23
But I appeal to God as my witness [i.e., to verify that I am telling the truth]; it was in order to spare you [i.e., from a disciplinary action] that I decided not to return to Corinth.
1 Corinthians 4:19-21
But I will come to you soon, if the Lord wants me to. Then I will determine not [only] what these arrogant people are saying, but how much power they have.
1 Corinthians 5:5
to turn such a person over to Satan for his body to be destroyed [Note: This probably refers to his removal from their fellowship. See verse 2], in order for his spirit to be saved in the day of the Lord [i.e., the judgment day]. [Note: This implies that his removal from their fellowship will have produced a genuine repentance before that time].
2 Corinthians 10:1-2
Now I Paul, who am humble [when speaking] face to face with you, but bold when I am away from you, urge you by the meekness and gentleness of Christ [Note: This means either Paul was imitating Christ's behavior or that the Corinthians were to do so]:
2 Corinthians 10:8-11
For even if I should boast too much about the authority the Lord gave us for building you people up [spiritually], and not tearing you down, I will not be ashamed of it.
2 Corinthians 12:20-21
For I am afraid that somehow, when I come [to you], I might not find you the way I want you to be, and you might not find me the way you want me to be. I am afraid there might be quarrelling, jealousy, angry outbursts, factious spirits, slander, gossip, arrogance and [other] disturbances [there].
2 Corinthians 13:10
This is the reason I am writing these things while away from you, so that I will not have to deal severely with you when I am there. For the Lord gave me authority to build people up [spiritually] and not to tear them down.