You probably saw that Justin Bieber wrote an apology letter to fans about why he canceled his tour.
Before you get mad that I'm even brigning him up,lets not judge so quickly because I have a feeling you can relate to the Biebs. Tired? worn out? Could use a break?  uhhh yeah~Both my hands are raised! 
There is tired and then theres the kind of exhaustion where it feels like no amount of sleep can make it better because its your soul that needs rest. Do you know what I'm talking about? Justin Bieber says “I am reminded of how blessed I am to have a voice in this world. I've learned the more you appreciate your calling the more you want to protect your calling.” And hes taking this time to protect that calling because he wants to be sustainable.

Don't we want the same thing? Rest so that we can be sustainable too. We can do anything for a short amount of time but maintaining a pedal to the medal life is impossible. At least in our own strength. The good news? We weren't meant to be self-sustaining.  Matthew 11:28-30 “Come to me, all you who are weary and burdened, and I will give you rest.Take my yoke upon you and learn from me, for I am gentle and humble in heart, and you will find rest for your souls.For my yoke is easy and my burden is light.”

And if you're like me, you've trained people that you will always say YES so when you start saying NO of course some people will be upset but they'll get over it. Protecting your peace and creating time for God to refill your heart will always be worth it.