You will face struggles.
You will face hardships.
You will face difficulties.
You will face opposition.
You will face rogue deacon/elder boards.
You will face demonic attacks.
You will face little old, red-haired ladies.
You will face death.
You will face attacks.
You will face loss.
You will face pain.
You will face persecution.
You will face accusation.
You will face blank stares.
You will face over-zealous, obnoxious, theological watch-bloggers.
But in the midst of all of that.
If you truly want to last in ministry.
You must remember your calling.
Nothing else will give you the stability you need to last in ministry.