I'm Working on a Building Lyrics

Well I'm working on a building
It's a true foundation
I'm holding up the blood-stained
Banner for my Lord
Well I never get tired, tired, tired working on the building
I'm going up to Heaven, oh Lord, to get my reward

Well if I was a sinner, let me tell you what I would do
Well I'd quit all my sinning
And work on the building too

Well if I was a preacher, let me tell you what I would do
Well I would keep on preachin'
And work on the building too