Don't be anxious, make requests known to God, and He will give peace

Scripture reference

Philippians 4:6–7 (ASV 1901)

6In nothing be anxious; but in everything by prayer and supplication with thanksgiving let your requests be made known unto God. 7And the peace of God, which passeth all understanding, shall guard your hearts and your thoughts in Christ Jesus.

Stories

Hudson Taylor was becoming sick with anxiety over the prospect of asking people to join him in the dangerous and difficult work in China. Only by fully trusting in God for his own welfare and direction did Hudson Taylor get peace to trust Him for the welfare and direction of future workers.
“Call upon Me in the day of trouble; I will deliver thee, and thou shalt glorify Me,” these were the words a distraught Hudson Taylor heard as he made for a doctor’s house in a bid to save his dying wife. In faith he obeyed and was instantly filled with unspeakable peace—a peace beyond all understanding. On getting home from the doctor’s, he found that the Great Physician Himself had visited his wife.