Luke 9:62

Verse 62. No man, having put his hand, &c. To put one's hand to a plough is a proverbial expression to signify undertaking any business. In order that a ploughman may accomplish his work, it is necessary to look onward--to be intent on his employment--not to be looking back with regret that he undertook it. So in religion. He that enters on it must do it with his whole heart. He that comes still loving the world--still looking with regret on its pleasures, its wealth, and its honours--that has not wholly forsaken them as his portion, cannot be a Christian, and is not fit for the kingdom of God.