Matthew 13:31-32 - The Parable Of The Mustard Seed
31 Another parable he put forth to them, saying: "The kingdom of heaven is like a mustard seed, which a man took and sowed in his field; 32 it is the smallest of all seeds, but when it has grown it is the greatest of shrubs and becomes a tree, so that the birds of the air come and make nests in its branches."
30 And he said, "With what shall we compare the kingdom of God, or what parable shall we use for it? 31 It is like a mustard seed which, when it is sown on the ground, is the smallest of all seeds in the earth; 32 yet when it is sown it grows up and becomes the greatest of all shrubs, and puts forth 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 But without a parable he did not speak to them. And when they were alone, he explained everything to his own disciples.