Joe McKeever offers what he characterises as the ten hardest lessons that pastors learn.
One picks up on a change that is not a simple adjustment of terms.
Pastors used to think in terms of calling.
Pastoring was a vocation, not a job, because it was something we were called to by God, not a role in which we were employed.
It seems that calling is giving way to the idea of a career in ministry.
McKeever offers the important distinction that needs to be kept in mind in pastoral life.

THE MINISTRY IS NOT A CAREER, BUT A CALLING.
We do nothing to “enhance our career,” but do a thousand things to “fulfill our calling.”

Read his other observations here.