John Gill Commentary 2 Corinthians 6:5

"in stripes, in imprisonments, in tumults, in labors, in watchings, in fastings;" — 2 Corinthians 6:5 (ASV)

In stripes
As the Apostle Paul particularly was, who was thrice beaten with rods, and five times scourged by the Jews with the scourge of forty stripes save one.

In imprisonments ;
under which are included bonds, in which they often were for the Gospel of Christ:

in tumults ;
and uproars of the people, when their lives were frequently in imminent danger: or "in tossings to and fro"; being driven from place to place through the fury of their enemies;

in labours ;
in a laborious ministry of the word, and administration of ordinances; or by labouring with their own hands to supply their necessities:

in watchings ;
being obliged to work night and day at their hand labour, and in preaching, praying, and singing psalms; which exercises they were often employed in at midnight:

in fastings ;
by which are meant not voluntary, but involuntary ones, through want of food to eat.