Job 8:20, 21 Behold, God will not cast away a perfect man, neither will he help the evil doers; till he fill thy mouth with laughing, and thy lips with rejoicing.
Bildad continues his false theological presumptions that God rewards the good man and punishes the bad man; therefore, Job must have sinned. But within this implied accusation is a true promise from God: God gives us joy and laughter, but joy comes from God’s goodness toward us, not as a reward for our goodness to Him.
Joy is one aspect of the fruit of the Spirit. The Father and the Son place the Holy Spirit within us and He promises and produces inner joy and outward laughter. Sin and misbelief will try to smother the joy of the Lord, but it is still there. The Spirit uncovers the joy and refreshes the spirit upon our hearing the gospel and receiving forgiveness. “I bring you good tidings of great joy.” Now by faith we rejoice in the Lord always with songs and shouts of thanks and praise.
Jesus did not come into our lives just to make us happy, or simply to make us feel good, but laughter and rejoicing is a definite result of His coming. And as we abide in Him and stay connected to Jesus through the gospel true Joy will deepen and flourish.