He has put a new song in my mouth— Praise to our God; Many will see it and fear, And will trust in the Lord.
(Psalm 40:3 NKJV)
The Bible is filled with songs mostly written in the book of Psalms. Poetry in the form of a song more adequately expresses emotions, deep faith and worship. God expects us to love Him with all of our heart, soul, mind and body. The intellect writes the lyrics to a new song, the heart/soul sings it and the physical body dances to the music all in celebration of the One who gave us life.