'Mustard seed' in the Bible

Another parable He put before them. "The Kingdom of the Heavens," He said, "is like a mustard-seed, which a man takes and sows in his ground.

"Because your faith is so small," He replied; "for I solemnly declare to you that if you have faith like a mustard-seed, you shall say to this mountain, 'Remove from this place to that,' and it will remove; and nothing shall be impossible to you.

It is like a mustard-seed, which, when sown in the earth, is the smallest of all the seeds in the world;

It is like a mustard seed which a man drops into the soil in his garden, and it grows and becomes a tree in whose branches the birds roost."

"If your faith," replied the Lord, "is like a mustard seed, you might command this black-mulberry-tree, 'Tear up your roots and plant yourself in the sea,' and instantly it would obey you.