Partial lyrics to GOLDEN GATE GOSPEL TRAIN from The Cambridge Companion to Blues and Gospel Music by Allan F. Moore (Cambridge University Press, 2002), augmented by listening to several sound samples:

Gospel train is comin'.
You'd better get your bus'ness right.
You'd better set your house in order, friends.
You know the train's gonna be here tonight.

Don't you hear the whistle blowin'?
Hear the bells a-tolling?
Don't you hear the engine exhaustin', friend?
You know the train's gonna be here tonight.

Now ... when she enters the Pearly Gates of Heaven,
Can't you imagine that you can hear this train go?
She blows across to Buffalo.
You know the train's gonna be here tonight.

Ah, sinner man
Don't you be(?) ride this train?
You'd better set your house in order, friend.
You know the train's gonna be here soon....

Norm Cohen, in "Long Steel Rail", says this is a version of GOSPEL TRAIN IS COMING, popularized by the Fisk Jubilee Singers.

For related versions, see the threads Fisk Jubilee Singers and Lyr Add: The Gospel Train (Jubilee 1), plus other threads and sheet music that you can link to from there.