This is from an old song by Henry Clay Work. It appeared in "The Shilling Song Book No. 2, Boston, copyrighted 1862, p. 14. In original sheet music form, it appears in "Songs of Henry Clay Work (1832-1884)." "Kingdom Coming" was copyright 1861 and published. It had a chorus:

De massa run, ha! ha!
De darky stay, ho! ho!
It must be now de kingdom's comin',
In the year ob Jubilo.

I am sure that there is other information and lyrics in the DT and Forum, which I will check for.