The God of Peace in the Midst of Anxiety

We all wrestle with anxiety. For some, it's obvious; for others, it's hidden well. At times, it's a mild uneasiness; at other times, it's a debilitating fear. However it manifests itself, experiencing anxiety is part of the human experience. And yet, the Apostle can write that we should be anxious about anything. What does he know that we don't? 

(note: Pastor Mike meant to credit Dane Ortlund for the backstory of "O Love That Will Not Let Me Go" at the end of the sermon.)