1 Peter 5:7:

Casting all your care upon him; for he careth for you.

See also:

Who You Are and What You Have
Peace in a Storm
How to Be Baptized with the Holy Spirit
Is It Harder to Receive Healing If You Owe People Money?
Objection: God Sometimes Leads Faithful Saints into “Wilderness Experiences”
Condition: Insomnia
Condition: Mental Illnesses
Notes on Psalm 127:2