2 Corinthians 2:12

2:12 Now when I arrived in Troas to proclaim the gospel of Christ, even though the Lord had opened a door of opportunity for me,

2 Corinthians 8:23

8:23 If there is any question about Titus, he is my partner and fellow worker among you; if there is any question about our brothers, they are messengers of the churches, a glory to Christ.