'Ministering' in the Bible

For the ministry of this service (offering) is not only supplying the needs of the saints (God’s people), but is also overflowing through many expressions of thanksgiving to God.

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.