What does Proverbs 15:13 mean?

Solomon observes that inner joy, or sadness, is reflected in a person's face. As with all "proverbs," this is a general statement of common sense, not an absolute rule. Sad people can "put on a brave face" and pretend all is well just as happy people can disguise their feelings. For the most part, however, our emotions are displayed in our physical bodies.

Instead of living under the circumstances, faith enables a believer to live above their circumstances (Philippians 4:13). Instead of becoming a victim of the hardships of life, the believer can become a victor over them. The apostle Paul's response to difficult circumstances is evident in his letter to the Philippian church. He could have become depressed, but he radiated joy. The words "joy" and "rejoice" occur often in Philippians despite Paul writing while shackled to guards while under house arrest in Rome. Furthermore, he faced the possibility of being executed. In his opening remarks to the Philippian believers, he writes: "I thank my God in all my remembrance of you, always in every prayer of mine for you all making my prayer with joy" (Philippians 1:3–4). Thankfulness and memory of past blessings contribute to a glad heart.