Personal checkpoints: am I doing God's work or mine?

With all of the alternatives and demands on our time these days, it's easy to lose track of what truly matters. I know I often need to ask -- and probably don't ask as often as I should -- whether I'm working for God or for myself. Any signposts that can help me stay on the proper path are deeply appreciated.
You may not be able to follow the link to this helpful posting at Dave Hackett's Frontier Blog: Is it a Ministry or Just a Job? I couldn't this week when I was looking for it last week. Google to the rescue! I found no less than a half dozen different versions of the thing. (And some came with a copyright notice and a claim to be the original…)
After reading and reflecting on the different versions, I boiled them down to this compilation. As I note at the end, I didn't originate it, but I do pray you find it helpful.

Is it a job or a ministry?

If you are doing it because you chose it, it is a job;
if you are doing it because Christ called you, it is a ministry.

If you do it because someone else thinks it needs to be done, it is a job; if you do it because you think it needs to be done, it is a ministry.

If you are doing it because no one else will, it's a job; if you are doing it to serve the Lord, it is a ministry.

If you are depending on your abilities, it is a job;if you are sure the most important thing is your availability to God, it is a ministry.

If you are ready to quit because no one ever praised you or thanked you, it is a job; if you stay with it even though no one notices your effort, it is a ministry.

If you are ready to quit because people criticize you, it is a job; if you are ready to keep serving, it is a ministry.

If your concern is success, it is a job; if your concern is faithfulness, it is a ministry.

If is hard to get excited about a job; it is almost impossible not to get excited about a ministry.

If you want others to say "great work," it is a job; if you want the Lord to say, "Well done, good and faithful servant," you have found your ministry.

An average congregation is filled with people doing jobs. A great and growing congregation is filled with people involved in ministry. God does not want us feeling stuck with a job, but excited and faithful to him in ministry.

Copied and adapted from various sources