Commentaries:
The Contemporary English Version (CEV) renders verse 62, "Anyone who starts plowing and keeps looking back isn't worth a thing to God's Kingdom."
Plowing in Jesus' day was done, not with a tractor, but behind an animal, something we have little or no experience doing. Few of us have spent any time walking behind a plow—and a garden tiller does not count as a plow! What was it like trying to keep an animal-pulled plow upright and true? YouTube offers many videos of just this thing: people trying to hold a plow straight and keep a team moving forward. It does not look easy. If the plowman took his eyes off what he was doing, the plow would fall over.
So, once a farmer became proficient enough to hold the plow up and had the animals trained to move ahead, he would have to keep his eyes fixed on the end of the row to plow a straight line. Back in the day, Farmer John would send his son or his hired hand out to plow a field. He would come by later to check on him and perhaps find the furrows crooked. The plowman had started plowing but perhaps kept looking back. He was not committed to the task at hand or was not focused on the goal.
Hebrews 10:39 (CEV) reads, "We are not like those people who turn back and get destroyed. We will keep on having faith until we are saved." Are God's requirements too exacting and difficult for us? Are we committed to the way forward, or are we spending time looking back?
Mike Ford
How Expensive Is Your Religion? (Part One)
In the warnings of possible costs in Luke 9:57-62; 14:25-30, He says we must expect the loss of the respect and association with those we feel the most affection for, family members. They are not going to appreciate the changes we have made in our lives. They are yet blinded because God has not removed the veil covering their spiritual perceptions. This happens to many of us. It occurred in my relationship with my parents.
Jesus warns that our lives may become seriously unstable, as outsiders might judge it. He suggests that the convert may become somewhat itinerant, seeming to have an unsettled existence. He also suggests that following Him would put demands on our lives and time that might cut close family members to the quick, perhaps even turning them into enemies. Christ makes plain that, despite God's well-known mercy, He wants our wholehearted, unreserved loyalty with no yearning ever to turn back to our former lives. It is in meeting challenges like these that the potential costs become realities.
Though not mentioned directly here, Hebrews 11 reminds us of those who were tortured by mocking and scourging, by imprisonment, by stoning, and even by being sawn in two. Others were forced to flee for their lives, wandering destitute and tormented, barely able to clothe themselves. This may not happen to many of us now, but as matters intensify, Jesus warns that people will eventually kill Christians, thinking that they are glorifying God.
John W. Ritenbaugh
The Awesome Cost of Love
Other Forerunner Commentary entries containing Luke 9:58:
Luke 9:57-62
Luke 14:25-30