Jesus was not afraid to demand radical commitment from anyone who followed Him. "Any of you who does not give up everything he/she has cannot be My disciple." (Luke 14:33) Jesus' call for total allegiance didn't win Him great hordes of followers, but it did discourage half-hearted volunteers.
Years ago, someone came up with a new slogan for the Christian life based on a TV commercial: "Try it-- you'll like it." Then another spin-off was, "Try Jesus." But we cannot just try Jesus, and stick with Him only if He suits us. He is our Savior. As Christians, we keep our eyes on Him and don't look back to our old ways of life.
Jesus used a metaphor of a man plowing a field. As long as the farmer keeps his hand on the plow and his gaze riveted on the goal ahead, then he'll plow a straight furrow. But let him look back over his shoulder a couple of times to see where he has been and the plow digs out a crooked furrow.
Similarly, we need to keep our eyes on Jesus and we'll not swerve.
Jesus said: "No one who puts his/her hand to the plow and looks back is fit for service in the Kingdom of God." Luke 9:62
Rev. Patricia E. Walker, AlphaChurch.org