Despite his intimidating name and physical appearance, Horatius Bonar (1808-89) was a great lover of children and was concerned about how little the children understood of the metrical Psalms that were sung in the Scottish church of his day. "I Heard the Voice of Jesus Say" was one of the over 600 hymns he wrote to address the needs of the churches he served. Interestingly, John B. Dykes (composer of "Holy, Holy, Holy" and "Jesus, the Very Thought of Thee") uses the somber key of G minor to present Jesus' invitation to our weary, thirsty and dark souls in the first half of each verse; in the second half of each verse when the invitation has been accepted and the soul satisfied, Dykes uses the happier key of G major. Take some time to read Jesus' invitations to you as recorded in the Gospels and reflect on your response to Him: Matthew 11:28; John 4:10, 13-14; John 8:12. --Greg Scheer, 1996
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I heard the voice of Jesus say. H. Bonar. [Christ's Invitation.] Written at Kelso, and published in his Hymns Original and Selected, 1846, and in the 1st series of his Hymns of Faith & Hope, 1857, in 3 stanzas of 8 lines, and headed, “The Voice from Galilee." It has come into extensive use, and is one of the most popular of the author's hymns. It is often used in Home Mission Services, and is suited thereto. It has been rendered into Latin by Dr. Macgill in his Songs of the Christian Creed and Life, 1876, as “Loquentem exaudivi."
--John Julian, Dictionary of Hymnology (1907)