Be alert, since you don’t know what day your Lord is coming.
Matthew 24:42
Words: John A. Lee, Greatest Hymns (Glencoe, Kentucky: J. A. Lee, 1911), number 94, alt.
Music: Frederick A. Fillmore (🔊 pdf nwc).
If you know where to get a good photo of Lee (head & shoulders, at least 200×300 pixels),

We know not how soon His return will be;
We know not how soon His dear face we will see,
But we know He is coming for you and for me:
Jesus is coming some day.
O brother, be working for Christ your Lord,
For all of your doings He’ll daily record,
And soon He’ll be coming to give the reward:
Jesus is coming some day.
Keep lamps trimmed and burning whatever you do;
Yes, faithful and loyal and ever be true,
And know that He surely is coming for you:
Jesus is coming some day.