I respond with, "That's right, but make them 200 important, necessary words."
Here are three simple things to bear in mind.
1. Look at the requirements of each devotional publisher. Do they take electronic submissions? only hard copy? Some publishers use the Lectionary (and if you don't know what that is, you need to find out). Or they select a biblical book for an entire issue. Some use only the NRSV translation. Follow their guidelines. (You can find guidelines online, by contacting the publisher, or in Sally Stuart's annual Christian Writers' Market Guide.)
2. Make certain your meditation carries a single focus—one idea. Here's the method I use when I'm not sure. I ask myself, "What one noun best describes the material?" Is it forgiveness? compassion? commitment? That word becomes my focus and before it goes to the proofreading stage, I ask, "Have I written anything that detracts from that single theme?" That's when I delete extraneous words.
3. Provide a takeaway value. Every devotional needs to share a lesson you've learned. Again, this sounds like the personal experience articles and it's similar—but briefer. You need to answer this question: "So what?"
As a final word on devotionals, this is an excellent place to make your first sales. It’s an opportunity to polish your writing skills, and this kind of writing also reinforces your commitment to send in material regularly. Small successes such as sales of meditations can encourage you to keep learning.
Make certain you answer the so-what question.