Key words: Christian life… singing… Psalms… Hymns… spiritual songs… melody… filled with the Spirit… To be filled with the Spirit means that we are being moved, motivated, and energized by God—who is Spirit… and is infinitely holy… To be filled with the Spirit is to live under the permeating pleasure and influence of God’s presence, power, and His Word… and this reality is evidenced by a melodious heart (Col 3:16). In other words, every true Christian has a SINGING SOUL… The melody of the heart may not always come out of our mouths sounding beautiful to the human ear… but it’s sweet music to God’s ear! Singing should be a part of every Christian’s life… if we are living under the influence of God’s Spirit…