Strive to know Him;
Cast your cares on Him;
Rest in everything else.
Luke 13:24 Strive to enter in at the strait gate: for many, I say unto you, will seek to enter in, and shall not be able.
1Peter 5:7 Casting all your care upon him; for he careth for you.
Matthew 11:28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.