Mark 4:31

By what can we illustrate it? Perhaps by the growth of a mustard-seed. This seed, when sown in the ground, though it is smaller than all other seeds,

Matthew 13:31-33

Another parable which he told them was this-- "The Kingdom of Heaven is like a mustard-seed, which a man took and sowed in his field.

Luke 13:18-19

So Jesus said: "What is the Kingdom of God like? and to what can I liken it?

Acts 2:41

So those who accepted his teaching were baptized, and about three thousand people joined the disciples on that day alone.

Acts 4:4

Many, however, of those who had heard the Apostles' Message became believers in Christ, the number of the men alone amounting to about five thousand.

Acts 5:14

And still larger numbers, both of men and women, as they became believers in the Lord, were added to their number.

Acts 19:20

So irresistibly did the Lord's Message spread and prevail.

Acts 21:20

And, when they had heard it, they began praising God, and said to Paul: "You see, Brother, that the Jews who have become believers in Christ may be numbered by tens of thousands, and they are all naturally earnest in upholding the Jewish Law.

Revelation 11:15

Then the seventh angel blew; and loud voices were heard in Heaven saying-- 'The Kingdom of the World has become the Kingdom of our Lord and of his Christ, and he will reign for ever and ever.'

Revelation 20:1-6

Then I saw an angel coming down from Heaven, with the key of the bottomless pit and a great chain in his hand.

Treasury of Scripture Knowledge

Summary

It is like a grain of mustard seed, which, when it is sown in the earth, is less than all the seeds that be in the earth:

Bible References

Like

Matthew 13:31
Another parable which he told them was this-- "The Kingdom of Heaven is like a mustard-seed, which a man took and sowed in his field.
Luke 13:18
So Jesus said: "What is the Kingdom of God like? and to what can I liken it?

Is less than

Acts 2:41
So those who accepted his teaching were baptized, and about three thousand people joined the disciples on that day alone.
Acts 4:4
Many, however, of those who had heard the Apostles' Message became believers in Christ, the number of the men alone amounting to about five thousand.
Acts 5:14
And still larger numbers, both of men and women, as they became believers in the Lord, were added to their number.
Acts 19:20
So irresistibly did the Lord's Message spread and prevail.
Acts 21:20
And, when they had heard it, they began praising God, and said to Paul: "You see, Brother, that the Jews who have become believers in Christ may be numbered by tens of thousands, and they are all naturally earnest in upholding the Jewish Law.
Revelation 11:15
Then the seventh angel blew; and loud voices were heard in Heaven saying-- 'The Kingdom of the World has become the Kingdom of our Lord and of his Christ, and he will reign for ever and ever.'
Revelation 20:1
Then I saw an angel coming down from Heaven, with the key of the bottomless pit and a great chain in his hand.