Matthew 13:31-35

He told another parable to them: “The kingdom of heaven is like a mustard seed that someone took and planted in his field. It’s the smallest of all seeds. But when it’s grown, it’s the largest of all vegetable plants. It becomes a tree so that the birds in the sky come and nest in its branches.” He told them another parable: “The kingdom of heaven is like yeast, which a woman took and hid in a bushel of wheat flour until the yeast had worked its way through all the dough.” Jesus said all these things to the crowds in parables, and he spoke to them only in parables. This was to fulfill what the prophet spoke