Mark 4:29

26 And he said, Such is the kingdom of God, as if a man put seed in the earth,

27 And went to sleep and got up, night and day, and the seed came to growth, though he had no idea how.

28 The earth gives fruit by herself; first the leaf, then the head, then the full grain.

29 But when the grain is ready, he quickly sends men to get it cut, because the time for cutting has come.

30 And he said, What picture may we give of the kingdom of God, or with what story may we make it clear?

31 It is like a grain of mustard seed, which, when it is put in the earth, is smaller than all the seeds on the earth,

32 But when it is planted, it comes up, and becomes taller than all the plants, and puts out great branches, so that the birds of heaven are able to take rest in its shade.