outlines and suggestive comments.

As you can only sharpen iron by iron, you can only sharpen souls by souls. Neither dead matter, however majestic in aspect or thunderous in melody, nor irrational life, however graceful in form or mighty in force, can sharpen a blunted soul. Mind alone can quicken mind; it is in all cases the spirit that quickeneth.—Dr. David Thomas.

Iron is welded by iron. (This is Miller’s rendering.) That is, we must bring a “force” of “iron” (not of tin, or brass, or wood, but, by the very necessities of its nature, of iron), and strictly a face of it, so that face may meet face (as of the water in the 19th verse), or they cannot run or mould themselves together. Fit a face of iron, red hot, to a face of iron, also hot, and force them hard upon each other, and thus you weld them. Bring a man face to face with his neighbour, and let them be warmed by a common taste, and, though one of them be God Himself, this will weld them.—Miller.

We owe some of the most valuable discoveries of science to this active reciprocity. Useful hints were thrown out, which have issued in the opening of large fields of hitherto unexplored knowledge. The commanding word in the field of battle puts a keen edge upon the iron (2 Sam. x. 11–13). The mutual excitation for evil is a solemn warning against “evil communications.” But most refreshing is it, when, as in the dark ages of the Church, “they that feared the Lord spake often one to another.” Sharpening indeed must have been the intercourse at Emmaus, when “the hearts of the disciples burned within them.” The apostle was often so invigorated by the countenance of his friends, that he longed to be “somewhat filled with their company.” Upon the principle—“Two are better than one”—our Lord sent His first preachers to their work. And the first Divine ordination in the Christian Church was after this precedent (Acts xiii. 2–4).—Bridges.

The countenance of a friend is a wonderful work of God. It is a work as great and good as a sun in the heavens; and verily, He who spread it out and bade it shine did not intend that it should be covered by a pall. . . . He intends that it should shine upon hearts that have grown dark and cold. . . . The human countenance—oh, thou possessor of the treasure, never prostitute that gift of God! If you could, and should pluck down these greater and lesser lights that shine in purity from heaven, and trail them through the mire, you would be ashamed as one who had put out the eyes and marred the beauty of creation. Equal shame and sin are his who takes this terrestrial sun—blithe, bright, sparkling countenance—and with it fascinates his fellow into the old serpent’s filthy folds.—Arnot.

main homiletics of verse 18.

The Reward of Service.

I. The reward of the servant of nature. The fig-tree may here be taken as typical of all that the earth produces for the sustenance of man. God has ordained that man shall be a co-worker with Himself in making the earth fruitful. If He gives the life to the herb or the tree, and sends the sun and the rain to quicken and nourish it, man must give his service too. It is his business to prepare the soil, to tend the God-given life, and to protect it as far as possible from all adverse influences. And this being done, some reward is certain. There will be cases of individual and occasional failure, but fruit for service is the rule in the kingdom of nature.

II. The reward of service rendered to man. Although the word servant is now obnoxious to many ears, we do well to remember the estimate which God puts upon faithful service and the important place which it holds in the world. He who served unto death left this command on record, “Whosoever will be the chiefest, shall be servant of all” (Mark x. 44), and a little consideration will convince us that the whole of human society is knit together by service. In one sense, all true men and women, however high their position, are servants to others. The good monarch and the faithful statesman are servants to their nation as truly as men and women in more lowly stations are servants to individual masters. It is, however, doubtless to these latter that the wise man here refers, and faithful service rendered by them in their small sphere is as much esteemed by God as the service of the greater and more gifted. Those who serve “as to the Lord, and not unto men” shall “of the Lord receive the reward of the inheritance,” says Paul (Col. iii. 22–24). Honour shall be awarded by God, not in proportion to the kind of service rendered, but in proportion to the spirit in which it is performed, and this fruit of faithful service will never fail. And, as a rule, esteem and gratitude from the earthly master will also be rendered.

outlines and suggestive comments.