You will be My witnesses…to the end of the earth.
Acts 1:8
Words: M. L. L., in Heralds of Grace, edited by Addison B. Bowser (Danville, Pennsylvania: A. B. Bowser, 1898), number 11. Sometimes incorrectly attributed to Marjorie L. Lloyd—Lloyd (1911–1985) was born after the words were published.
Music: Charles D. Tillman (🔊 pdf nwc).
If you know the author’s name, or where to get a good photo of him (head & shoulders, at least 200×300 pixels),

Have you any words for Jesus?
Oh, speak them day by day;
Never leave a word unspoken
That He would have you say.
Refrain
Stand up, stand up for Jesus!
Oh, speak for Him toay;
Be a witness for salvation,
Speak for Jesus while you may.
Refrain
Have you any testimony
For the living Lord within?
It may help another—give it;
To withhold it would be sin.
Refrain
Does the Master reign triumphant
In your soul from day to day?
Tell it out unto your neighbors,
Tell it, tell it, by the way.
Refrain
Witnesses of His salvation,
Speak for Jesus while you may;
Soon will come the long, long silence,
Till the resurrection day.
Refrain