Mark 4:30-34 WEB

30 He said, "How will we liken the Kingdom of God? Or with what parable will we illustrate it? 31 It's like a grain of mustard seed, which, when it is sown in the earth, though it is less than all the seeds that are on the earth, 32 yet when it is sown, grows up, and becomes greater than all the herbs, and puts out great branches, so that the birds of the sky can lodge under its shadow." 33 With many such parables he spoke the word to them, as they were able to hear it. 34 Without a parable he didn't speak to them; but privately to his own disciples he explained everything.