Luk 13:18-19 KJV
(18) Then said he, Unto what is the kingdom of God like? and whereunto shall I resemble it?
(19) It is like a grain of mustard seed, which a man took, and cast into his garden; and it grew, and waxed a great tree; and the fowls of the air lodged in the branches of it.
Mar 4:30-32 KJV
(30) And he said, Whereunto shall we liken the kingdom of God? or with what comparison shall we compare it?
(31) It is like a grain of mustard seed, which, when it is sown in the earth, is less than all the seeds that be in the earth:
(32) But when it is sown, it groweth up, and becometh greater than all herbs, and shooteth out great branches; so that the fowls of the air may lodge under the shadow of it.