Commentaries
13:31-35 The scope of the parable of the seed sown, is to show that the beginnings of the gospel would be small, but its latter end would greatly increase; in this way the work of grace in the heart, the kingdom of God within us, would be carried on. In the soul where grace truly is, it will grow really; though perhaps at first not to be discerned, it will at last come to great strength and usefulness. The preaching of the gospel works like leaven in the hearts of those who receive it. The leaven works certainly, so does the word, yet gradually. It works silently, and without being seen, Mr 4:26-29, yet strongly; without noise, for so is the way of the Spirit, but without fail. Thus it was in the world. The apostles, by preaching the gospel, hid a handful of leaven in the great mass of mankind. It was made powerful by the Spirit of the Lord of hosts, who works, and none can hinder. Thus it is in the heart. When the gospel comes into the soul, it works a thorough change; it spreads itself into all the powers and faculties of the soul, and alters the property even of the members of the body, Ro 6:13. From these parables we are taught to expect a gradual progress; therefore let us inquire, Are we growing in grace? and in holy principles and habits?
32. Which indeed is the least of all seeds—not absolutely, but popularly and proverbially, as in Lu 17:6, "If ye had faith as a grain of mustard seed," that is, "never so little faith."
but when it is grown, it is the greatest among herbs—not absolutely, but in relation to the small size of the seed, and in warm latitudes proverbially great.
and becometh a tree, so that the birds of the air come and lodge in the branches thereof—This is added, no doubt, to express the amplitude of the tree. But as this seed has a hot, fiery vigor, gives out its best virtues when bruised, and is grateful to the taste of birds, which are accordingly attracted to its branches both for shelter and food, is it straining the parable, asks Trench, to suppose that, besides the wonderful growth of His kingdom, our Lord selected this seed to illustrate further the shelter, repose and blessedness it is destined to afford to the nations of the world?
The Leaven (Mt 13:33).