21 And he said to them, "Is a lamp brought in to be put under a basket, or under a bed, and not on a stand? 22 For nothing is hidden except to be made manifest; nor is anything secret except to come to light. 23 If anyone has ears to hear, let him hear." 24 And he said to them, "Pay attention to what you hear: with the measure you use, it will be measured to you, and still more will be added to you. 25 For to the one who has, more will be given, and from the one who has not, even what he has will be taken away."
26 And he said, "The kingdom of God is as if a man should scatter seed on the ground. 27 He sleeps and rises night and day, and the seed sprouts and grows; he knows not how. 28 The earth produces by itself, first the blade, then the ear, then the full grain in the ear. 29 But when the grain is ripe, at once he puts in the sickle, because the harvest has come."
30 And he said, "With what can we compare the kingdom of God, or what parable shall we use for it? 31 It is like a grain of mustard seed, which, when sown on the ground, is the smallest of all the seeds on earth, 32 yet when it is sown it grows up and becomes larger than all the garden plants and puts out large branches, so that the birds of the air can make nests in its shade."
33 With many such parables he spoke the word to them, as they were able to hear it. 34 He did not speak to them without a parable, but privately to his own disciples he explained everything.
Matthew Henry's Commentary on Mark 4:21-34
Commentary on Mark 4:21-34
(Read Mark 4:21-34)
These declarations were intended to call the attention of the disciples to the word of Christ. By his thus instructing them, they were made able to instruct others; as candles are lighted, not to be covered, but to be placed on a candlestick, that they may give light to a room. This parable of the good seed, shows the manner in which the kingdom of God makes progress in the world. Let but the word of Christ have the place it ought to have in a soul, and it will show itself in a good conversation. It grows gradually: first the blade; then the ear; after that the full corn in the ear. When it is sprung up, it will go forward. The work of grace in the soul is, at first, but the day of small things; yet it has mighty products even now, while it is in its growth; but what will there be when it is perfected in heaven!