'Labors' in the Bible

in beatings, in imprisonments, in tumults, in labors, in sleeplessness, in hunger,

not boasting beyond our measure, that is, in other men’s labors, but with the hope that as your faith grows, we will be, within our sphere, enlarged even more by you,

Are they servants of Christ?—I speak as if insane—I more so; in far more labors, in far more imprisonments, beaten times without number, often in danger of death.