'Mustard seed' in the Bible

He told them this story, as follows: "The kingdom of heaven may be compared to a mustard seed which a man took and sowed in his field.

It is like a mustard seed, which, when it is sown in the ground, is the smallest of all seeds,

It is like a mustard seed which a man took and dropped in his garden, and it grew and became a tree, and the wild birds roosted in its branches."

Then the Lord said to them, "If you had faith that grows like a mustard seed, you might have been saying to this mulberry tree, 'Pull yourself up by the roots and plant yourself in the sea,' and it would have obeyed you!