Compare Isaiah 50:4.

I am like the wearing-out string of a wondrous violin-the Master uses great care in daily tuning it, lest it break and no music come from it here:but then-when He comes to take it for heavenly choirs and it becomes like him-then, the Master, and the violin, and the music – and the string! oh grace unutterable!-forever with the Lord!

To be servant to such a Master !-and the service shall be eternal, like His own service. "And His servants shall serve Him, and they shall see His face and His name shall be in their foreheads . . . and they shall reign forever" (Rev. 20 :3-5).

Wonderful Master ! Happy servants ! Blessed, joyous, eternal service!