God: "I looked for someone to take a stand for me, and stand in the gap" (Ezekiel 22:30)
A biblical approach to change focuses on someone other than ourselves. Change starts, proceeds, and ends with Jesus. We look to Jesus and away from ourselves.
The true doctrine of calling is that the man whom God has designed and qualified to preach learns his call through the Word. The Word is the instrument by which the Spirit teaches him, with prayer, that he is to preach.