2 Cor 10:1-2
10:1 Now I Paul myself beseech you by the meekness and gentleness of Christ, who in presence am base among you, but being absent am bold toward you:
2 But I beseech you, that I may not be bold when I am present with that confidence, wherewith I think to be bold against some, which think of us as if we walked according to the flesh.
KJV
Many who are described as introverted, timid, fearful or unlearned simply because they are deferring, self-effacing, meek and quiet in the presence of others are often a strong reservoir of inner strength, discipline, counsel and wisdom, which for our sakes and their own, makes it necessary for them to operate in deep humility. Otherwise, such men and women would be considered arrogant, attention seeking or self-aggrandizing if their deep giftings were fully on display when they seek to serve. Among the many wonderful revelations of God that Paul shares with his readers in his letters to the Corinthians was the disposition and personality of God’s ministers when communicating the mysteries of the gospel with those who would hear. For these men and women knew that to bring attention to anyone but the one to whom all glory is due would be indeed be as those “walked according to the flesh” and gloried in themselves. Still further, such men and women, as sincere ministers of God, declare similar to Paul in their service to God and others: “I seek not yours but you.”
[But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us.] 2 Corinthians 4:7 (KJV 1900)