Jesus asked, "What is God's kingdom like? To what can I compare it?
References for Luke 13:18
It's like a mustard seed that someone took and planted in a garden. It grew and developed into a tree and the birds in the sky nested in its branches."
Again he said, "To what can I compare God's kingdom?
It's like yeast, which a woman took and hid in a bushel of wheat flour until the yeast had worked its way through the whole."