Parable of the Mustard Seed

This is the same man that planted the mustard seed, but now he has a friend
with him. They are looking at something that has grown up out of the ground.
 It is the little mustard seed that has grown up into a tree. The man that planted
it is telling his friend how little it was, but now it has grown so large that the
birds can come and sit in its branches.

Luke 13:18-19