Heman was the king's seer (2Chronicles 25:5). He was also his director of music. King David selected the sons of Heman, along with those of Asaph and Jeduthun, to be the orchestra, exalting God and filling the house of the Lord with music. To prophecy is to foretell or to forthtell, to speak God's Word for the future or for today; but there must be more, because the sons of Heman, Asaph, and Jeduthun "prophesied with lyres, with harps, and with cymbals" (1Chronicles 25:1). The music itself spoke God's Word, not to the future or the present, but to the soul. Prophecy tells us more than what is or what will be, but it speaks to who we are and who is our God. There is a power in beauty that declares the divine and opens our hearts to the wonders of our Creator.
The heavens declare the glory of God,
and the sky above proclaims his handiwork.
Day to day pours out speech,
and night to night reveals knowledge.
There is no speech, nor are there words,
whose voice is not heard.
Their voice goes out through all the earth,
and their words to the end of the world.
~A Psalm of David 19:1-4
It is not the heavens alone, but the majesty and mystery of music that touches our heart, that sings to the soul, that declares God's glory, that prophecies with lyres, with harps, and with cymbals. This is why we sing.
Wonderful God, fill me with Your Spirit, with Your Words, with Your songs, that I might declare Your wonders and Your glory, the beauty and mystery of life. You touch my mind and I understand, but worship is more than what I simply think. There is language deeper than words, unlocked by the heavens, by music, by creation, by wonder, that express Your glory. Your grace and love and truth are displayed not only in what I do and what I say, but in what I sing. What a strange and wonderful thing is music. Thank You for it. Where words fail to express Your glory, music proclaims it to the world. What a wonderful God.