George Pullen Jackson in "Spiritual Folk-songs of Early America" (1937) has a variation of the Hart lyrics collected from the singing of Donald Davidson in 1935 in Tennessee. That version lacks verses 2 & 3 shown in the Hart link. The different Verse 4 is below. Jackson suggests that the refrain is "probably of camp-meeting origin". A nice recording of the song with the "Come Thou Fount..." verses is on Trapezoid "Three Forks of Cheat" album.

Agonizing in the garden
Lo, your Master prostrate lies;
On the bloody tree behold him,
Hear him cry before he dies.

rich r