God's words are like chemicals that even can dissolve fear when we mix them with faith. [Hebrews chapter 4 verse 2].
Some years ago my wife was plagued with fear when facing surgery. She loves God and knew He understood how she felt, so she prayed that He would give her a promise that would help. She soon found herself reading Psalm 56 verse 3, "Whenever I am afraid, I will trust in You." She mixed these words with faith and gradually her fears dissolved. Millions know that God's chemistry works!