If you will hear His voice, harden not your hearts.
Hebrews 3:15
Words: Charles Parsons, in the Christian Science Hymnal (Boston, Massachusetts: Christian Science Publishing Society, 1893), number 107.
Music: Olmutz arranged from a Gregorian chant by Lowell Mason, 1824 (🔊 pdf nwc).
Alternate Tune:
If you know where to get a good photo of Parsons (head-and-shoulders, at least 200×300 pixels),
Oh do not bar your mind
Against the light of good;
But open wide, let in the Word,
And truth will be your food.
It will from error free
Your long enslavèd mind
And bring the light of liberty
Where it shall be enshrined.
Hid treasures it reveals
To all who know its power;
And all who will may light receive,
In this most gracious hour.
Then open wide your heart
To truth and light and love;
You then shall know your life is hid
With Christ in God above.