'Labors' in the Bible

in beatings, in imprisonments, in riots, in labors, in sleepless nights, in hunger,

We do not go beyond our proper limit, boasting in the work of other men, but we have the hope that as your faith [in Christ and His divine power] continues to grow, our field among you may be greatly expanded [but still within the limits of our commission],

Are they [self-proclaimed] servants of Christ?—I am speaking as if I were out of my mind—I am more so [for I exceed them]; with far more labors, with far more imprisonments, beaten times without number, and often in danger of death.