It is comforting to know that the Lord is at hand. Here is a medicine to relieve grief and every bad circumstance and every pain. What is it? To pray and to give thanks in everything. Grief comes out of the circumstances [of life] with their demands. Thanksgiving comes from a soul that has true insight and a strong affection for God.

–John Chrysostom, Homily on Philippians 15.4.4-7