Paul’s closing counsel in 1 Thessalonians is almost childlike in its plainness: rejoice always, pray without ceasing, give thanks in all circumstances. It is not an instruction to pretend. It is a way of staying turned towards God when the week has been hard and the news has been heavy; a habit of the heart, learned slowly, renewed often.
This posture has public weight. A thankful people are harder to govern by panic. A praying people are slower to scapegoat. A rejoicing people can keep serving without making bitterness their home, because their hope is not hostage to outcomes, and their love is not waiting for perfect conditions.