Matthew 13:31-33

He presented another parable to them: “The kingdom of heaven is like a mustard seed that a man took and sowed in his field. It’s the smallest of all the seeds, but when grown, it’s taller than the garden plants and becomes a tree, so that the birds of the sky come and nest in its branches.” He told them another parable: “The kingdom of heaven is like leaven that a woman took and mixed into fifty pounds of flour until all of it was leavened.”