(34) Salt is good.--The words are all but identical with those of Matthew 5:13, and resemble those of Mark 9:50. (See Notes on those passages.) They appear now, however, in a very different context, and the train of thought is not at first sight so clear. The common element in all three instances is that salt represents the purifying element in life, the principle of unselfish devotion. Here, the special aspect of that element is self-renunciation. In proportion as that is incomplete, the salt loses its savour. The question, Wherewith shall it be salted? is asked as in the accents of almost hopeless sadness. What other purifying influences can be brought to bear on us when the love of Christ has failed?

Verses 34, 35. - Salt is good: but if the salt have lost his savour, wherewith shall it be seasoned! It is neither fit for the land, nor yet for the dunghill; but men cast it out. Here "salt" stands for the spirit of self-sacrifice, self-renunciation. When in a man, or in a nation, or in a Church, that salt is savourless, then that spirit is dead; there is no hope remaining for the man, for the people, or the Church. The lesson was a general one - it was meant to sink into each listener's heart; but the Master's sad gaze was fixed, as he spoke the sombre truth, on the people of Israel whom he loved, and on the temple of Jerusalem where his glory-presence used to dwell. Men cast it out. Jesus could hear the armed tramp of the Roman legions of the year 70 as they east out his people from their holy land.

14:25-35 Though the disciples of Christ are not all crucified, yet they all bear their cross, and must bear it in the way of duty. Jesus bids them count upon it, and then consider of it. Our Saviour explains this by two similitudes; the former showing that we must consider the expenses of our religion; the latter, that we must consider the perils of it. Sit down and count the cost; consider it will cost the mortifying of sin, even the most beloved lusts. The proudest and most daring sinner cannot stand against God, for who knows the power of his anger? It is our interest to seek peace with him, and we need not send to ask conditions of peace, they are offered to us, and are highly to our advantage. In some way a disciple of Christ will be put to the trial. May we seek to be disciples indeed, and be careful not to grow slack in our profession, or afraid of the cross; that we may be the good salt of the earth, to season those around us with the savour of Christ.Salt is good,.... See Gill on Matthew 5:13, Mark 10:50.