Why is it important for Christians to have joy in their fellowship with God?

The importance of joy in the Christian's life is echoed in 1 John 1:4, where John writes that he desires our joy may be full, grounded in our fellowship with the Father and the Son. Joy is a fruit of the Holy Spirit, indicating a genuine relationship with God. As believers experience true fellowship rooted in Christ, they are filled with joy that surpasses circumstances. This joy comes from the assurance of salvation and the vital connection we have with God through the Holy Spirit, which nurtures our spiritual lives and testimony to others.