Luke 14:34,35

Jesus said, "Salt is a fine thing; but if salt has become insipid, by what means shall its taste be restored? It is fit neither for the land nor the dunghill. Men throw it out. He who has an ear to hear, let him hear."

Just sometimes Jesus speaks with a threat in his voice. When a person is always carping and criticizing and complaining, his irritable anger ceases to have any significance or any effect. But when someone whose accent is the accent of love suddenly speaks with a threat we are bound to listen. What Jesus is saying is this--when a thing loses its essential quality and fails to perform its essential duty, it is fit for nothing but to be thrown away.

Jesus uses salt as a symbol of the Christian life. What, then, are its essential qualities? In Palestine it had three characteristic uses.

(i) Salt was used as a preservative. It is the earliest of all preservatives. The Greeks used to say that salt could put a new soul into dead things. Without salt a thing putrefied and went bad; with it its freshness was preserved. That means that true Christianity must act as a preservative against the corruption of the world. The individual Christian must be the conscience of his fellows; and the church the conscience of the nation. The Christian must be such that in his presence no doubtful language will be used, no questionable stories told, no dishonourable action suggested. He must be like a cleansing antiseptic in the circle in which he moves. The church must fearlessly speak against all evils and support all good causes. She must never hold her peace through fear or favour of men.

(ii) Salt was used as a flavouring. Food, without salt, can be revoltingly insipid. The Christian, then, must be the man who brings flavour into life. The Christianity which acts like a shadow of gloom and a wet blanket is no true Christianity. The Christian is the man who, by his courage, his hope, his cheerfulness and his kindness brings a new flavour into life.

(iii) Salt was used on the land. It was used to make it easier for all good things to grow. The Christian must be such that he makes it easier for people to be good and harder to be bad. We all know people in whose company there are certain things we would not and could not do; and equally we all know people in whose company we might well stoop to things which by ourselves we would not do. There are fine souls in whose company it is easier to be brave and cheerful and good. The Christian must carry with him a breath of heaven in which the fine things flourish and the evil things shrivel up.

That is the function of the Christian; if he fails in his function there is no good reason why he should exist at all; and we have already seen that in the economy of God uselessness invites disaster. He who has an ear to hear, let him hear.