You keep him in perfect peace whose mind is stayed on you, because he trusts in you. (Isaiah 26:3)
Real, sturdy, lasting peace, peace that doesn’t rise and fall with circumstances, isn’t to be found in picking apart your life until you have understood all of the components. You will never understand it all because God, for your good and his glory, keeps some of it shrouded in mystery. So peace is found only in trust, trust of the One who is in careful control of all the things that tend to rob you of your peace. He knows, he understands, he is in control of what appears to be chaos, he is never surprised, he is never confused, he never worries or loses a night’s sleep, he never walks off the job to take a rest, he never gets so busy with one thing that he neglects another, and he never plays favorites.
You need to remind yourself again and again of his wise and loving control, not because that will immediately make your life make sense, but because it will give you rest and peace in those moments that all of us face at one time or another–when life doesn’t seem to make any sense.
From New Morning Mercies (January 14) by Paul David Tripp