This is a brief excerpt from Gary Lambs Blog:

I often get asked from pastors/planters if I could only give them one piece of advice than what would it be?

It would be simply BE SECURE IN YOUR CALLING.

There are days when nothing will get you through the day but your calling. There are days that the only thing that will keep you from quitting is your calling.

There are days when you think you are in over your head but you know you are called. ...

See the whole post on Gary Lamb’s Blog