You keep him in perfect peace whose mind is stayed on you, because he trusts in you. Trust in the Lord forever, for the Lord God is an everlasting rock. (Isaiah ESV) such a truth, so grateful that in this crazy messy world GOD is my PEACE!
"Lord, if it's not your will, let it slip through my grasp and give me the peace not to worry about it anymore." - however, if something is going to slip through your grasp it may require actively opening your hands
Philippians 6 Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. 7 And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.