Charles Ellicott Commentary Isaiah 28:24

"Doth he that ploweth to sow plow continually? doth he [continually] open and harrow his ground?" — Isaiah 28:24 (ASV)

Does the plowman plow all day...? —Better, every day. Plowing represents naturally, as in Jeremiah 4:3, the preparatory discipline by which the spiritual soil is rendered fit for the sower's work. It is a means, and not an end, and is, therefore, in its very nature only for a season. To a nation passing through this stage, Assyrian invaders scoring their long furrows visibly on the surface of the land, the parable gave the hope that this was preparing the way for the seedtime of a better harvest.