In her book Choosing Gratitude, Nancy Leigh DeMoss shares a pledge written by a Bible teacher named Russell Kelfer. He challenged believers to write these words on a sheet of paper, and sign their names, then make a habit of recommitting themselves to it on a regular basis:

Having been born into the kingdom of God, I do hereby acknowledge that God’s purchase of my life included all the rights and control of that life for all eternity.

I do further acknowledge that He has not guaranteed me to be free from pain or to have success or prosperity. He has not guaranteed me perfect health. He has not guaranteed me perfect parents. He has not guaranteed me perfect children. He has not guaranteed me the absence of pressures, trials, misunderstandings, or persecution.

What He has promised me is eternal life. What He has promised me is abundant life. What He has promised me is love, joy, peace, patience, gentleness, meekness, and self-control. He has given me all of Himself in exchange for the rights to my life…

Therefore I acknowledge this day the relinquishment of all my rights and expectations, and humbly ask Him by His grace to replace these with a grateful spirit, for whatever in His wisdom He deems to allow for my life. 

In other words, this day—like every other day—belongs to God, not me. So, if God determines that I should spend time contending with a flat tire, an unpleasant confrontation, or even an unexpected trip to the emergency room, that’s completely up to Him. He knows best. He’s the master, I’m His servant. I have trusted Him with my eternal life, and I will trust Him with my life today.