Mark 4:30-32

 ³⁰ He also said, “With what can we compare the kingdom of God, or what parable will we use for it? ³¹ It is like a mustard seed, which, when sown upon the ground, is the smallest of all the seeds on 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.”