Having one’s joy full means
Having one’s joy full means there is no room for any more of it. Full joy is our first line of defense against weakness, failure and disease of mind a body. But even when they break through into our life, “the joy of the Lord is our strength” (Nehemiah 8:10)
Dallas Willard
From the book "Renovation of the Heart: Putting on the Character of Christ (Th1nk LifeChange)"