61. I will follow . . . but—The second disciple had a "but" too—a difficulty in the way just then. Yet the different treatment of the two cases shows how different was the spirit of the two, and to that our Lord addressed Himself. The case of Elisha (1Ki 19:19-21), though apparently similar to this, will be found quite different from the "looking back" of this case, the best illustration of which is that of those Hindu converts of our day who, when once persuaded to leave their spiritual fathers in order to "bid them farewell which are at home at their house," very rarely return to them. (Also see on Mt 8:21.)

     62. No man, &c.—As ploughing requires an eye intent on the furrow to be made, and is marred the instant one turns about, so will they come short of salvation who prosecute the work of God with a distracted attention, a divided heart. Though the reference seems chiefly to ministers, the application is general. The expression "looking back" has a manifest reference to "Lot's wife" (Ge 19:26; and see on Lu 17:32). It is not actual return to the world, but a reluctance to break with it. (Also see on Mt 8:21.)