The prophet Isaiah didn’t just see heaven—he heard it. In this clip, R.C. Sproul reflects on the angelic worship Isaiah witnessed and how even the most moving hymns on earth are but a faint echo of heaven’s song.

Dr. Sproul’s teaching series The Holiness of God is available to stream for free on Ligonier’s YouTube channel. Watch and share all 6 classic messages using the link on this video.