What does the Bible say about being cheerful in difficult situations?

Proverbs 17:22 tells us that 'a merry heart does good like medicine,' which emphasizes the significance of maintaining a cheerful disposition in life's challenges. In Matthew 9:2, Jesus encourages a paralyzed man to 'be of good cheer' as His first words, linking it directly to the forgiveness of sins. This implies that regardless of our circumstances, the believer's status in Christ and the assurance of forgiveness should lead us to a state of cheerfulness, overshadowing worldly troubles.