Psa 4:7 You have put gladness in my heart, more than in the season that their grain and wine increased.
Heb 1:9 Thou hast loved righteousness, and hated iniquity; therefore God, even thy God, hath anointed thee with the oil of gladness above thy fellows. (KJV)
Each Christian can have great gladness in our lives as we turn from wrong things and love being right with God.
We turn away from sin. We say yes to God in all of our ways.