1 Corinthians 1:1; 1 Corinthians 7:37; 1 Corinthians 16:12

1 Corinthians 1:1

1 Paul, called to be an apostle of Christ Jesus by the will of God, and our brother Sosthenes,

1 Corinthians 7:37

37 But the man who has settled the matter in his own mind, who is under no compulsion but has control over his own will, and who has made up his mind not to marry the virgin—this man also does the right thing.

1 Corinthians 16:12

12 Now about our brother Apollos: I strongly urged him to go to you with the brothers. He was quite unwilling to go now, but he will go when he has the opportunity.