'Ploughman' in the Bible

The whole day plougheth the ploughman to sow? He openeth and harroweth his ground!

Lo, days are coming -- an affirmation of Jehovah, And come nigh hath the ploughman to the reaper, And the treader of grapes to the scatterer of seed, And the mountains have dropped juice, And all the hills do melt.

Or has he us in mind? Yes, it was said for us; because it is right for the ploughman to do his ploughing in hope, and for him who is crushing the grain to do his work hoping for a part in the fruits of it.