A Charity never faileth (1 Cor 13:8a)
B  but whether there be prophecies, they shall fail (1 Cor 13:8b)
B  whether there be tongues, they shall cease (1 Cor 13:8c)
B  whether there be knowledge, it shall vanish away (1 Cor 13:8d)
C    for we know in part, and we prophesy in part (1 Cor 13:9)
D      but when that which is perfect is come (1 Cor 13:10a)
D      then that which is in part shall be done away (1 Cor 13:10b)
E        when I was a child (1 Cor 13:11a)
X          I spake as a child (1 Cor 13:11b) [cp. tongues]
X          I understood as a child (1 Cor 13:11c) [cp. prophecies]
X          I thought as a child (1 Cor 13:11d) [cp. knowledge]
X          I put away childish things (1 Cor 13:11f)
E'        but when I became a man (1 Cor 13:11e)
D'      for now we see through a glass, darkly (1 Cor 13:12a)
D'      but then face to face (1 Cor 13:12b)
C'    now I know in part; (1 Cor 13:12c)
C'    but then shall I know even as also I am known (1 Cor 13:12d)
B'  and now abideth faith (1 Cor 13:13a)
B'  hope (1 Cor 13:13b)
B'  charity these three (1 Cor 13:13c)
A' but the greatest of these is charity (1 Cor 13:13d)