Thus Far Did I Come, by Helen Williams
In John Bunyan's Pilgrim's Progress, Christian carries a burden on his back until he sees the cross of Jesus. The burden falls off and Christian sings these words.

Recording courtesy of St Martin's Church Choir, Epsom, conducted by Paul Johnson-Hyde.
Viol Arrangement
An arrangement for viol consort may be downloaded from here.
For unaccompanied four-part choir.
John Bunyan's Dream
Image © Georgios Kollidas -
Communion motet, especially suited to passiontide.
Bunyan's feast day is 30th August.