Repentance produces joy
May our Lord Jesus Christ and God our Father, who loved us and in His special favor gave us everlasting comfort and good hope, comfort your hearts and give you strength in every good thing you do and say. For God will use sorrow in our lives to help us turn away from sin and seek salvation. We will never regret that kind of sorrow. But sorrow without repentance is the kind that results in death.
(2 Thessalonians 2:16, 2 Corinthians 7:10)