Charles K. Wolfe says in notes to The Carter Family: Longing for Old Virginia (Rounder CD):

Another "Holiness song" [in addition to "Hello Central, Give Me heaven"] was "I'm Working on a Building," still current in gospel repertoires today.

And there's a song "WORKIN' ON THE BUILDING" recorded in Odum & Johnson, The Negro and His Songs (1925, p. 72). This seems to be related:

If I wus a sinner man, I tell you what I'd do,
I'd lay down all my sinful ways an' work on the building too.

I'm workin' on the building fer my Lord,
Fer my Lord, fer my Lord,
I'm workin' on the building fer my Lord,
I'm workin' on the building, too.

If I wus a gamblin' man, I tell you what to do,
I'd lay down all my gamblin', an' work on the building, too.

If I was a 'ho'-munger, I tell you what to do,
I'd lay down all my munglin' and work on the building, too.

Masato