(Great song, written by Bob Dylan, performed by John for the soundtrack of "I'm Not There". 
Pretty easy to play, but it sounds great with an organ and a choir.)

Tuning: Standard
Chords:
E - 022100
Abm - 466444
A - x02220
B - x24442

EI'm (022100@1)pressing on.
    AbmI'm (133111@4)pressing on;
    A (x02220@1)      EI'm (022100@1)pressing on
       A (x02220@1)     B (x2444x@1)          ETo (022100@1)the higher calling of my love.

E (022100@1)         AbmMany (133111@4)try to stop me,
         A (x02220@1)      EShake (022100@1)me up in my mind
                    AbmSaying, (133111@4)"prove that he's the Lord,
A (x02220@1)       EShow (022100@1)me a sign!"
                  AbmWhat (133111@4)kind of sign may it be,
         A (x02220@1)           EWhen (022100@1)it comes from within?
                     AbmWhen (133111@4)what's lost has been found,
        A (x02220@1)              EWhat's (022100@1)come has already been.

(And repeat. The chord progression is the same for each verse and chorus.)