'Plowing' in the Bible

So he departed thence, and found Elisha the son of Shaphat, who was plowing with twelve yoke of oxen before him, and he with the twelfth: and Elijah passed by him, and cast his mantle upon him.

And there came a messenger unto Job, and said, The oxen were plowing, and the asses feeding beside them:

An high look, and a proud heart, and the plowing of the wicked, is sin.