Mark 4:31

It is like a grain of mustard, which when it is sown in the earth, is among the least of all the seeds which are upon the earth:

Matthew 13:31-33

Another parable he proposed to them, saying, The kingdom of heaven is like a grain of mustard, which a man took and sowed in his field:

Luke 13:18-19

Then said he, To what is the kingdom of God like? and whereunto shall I compare it?

Acts 2:41

They therefore who gladly received his discourse were baptised: and there were added to them that day about three thousand souls.

Acts 4:4

But many of those who heard the word believed; and the number of the men was about five thousand.

Acts 5:14

But believers on the Lord were abundantly added to them, multitudes, both of men and women.)

Acts 19:20

So mightily did the word of God increase and prevail.

Acts 21:20

And they, when they heard it, glorified the Lord, and said unto him, Thou seest, brother, how many myriads there are of Jews who have believed; and they are all zealots for the law:

Revelation 11:15

And the seventh angel sounded; and there were great voices in heaven, saying, The kingdoms of the world are become our Lord's, and his Messiah's, and he shall reign for ever and ever.

Revelation 20:1-6

AND I saw an angel descending from heaven, having the key of the abyss [of hell], 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 he proposed to them, saying, The kingdom of heaven is like a grain of mustard, which a man took and sowed in his field:
Luke 13:18
Then said he, To what is the kingdom of God like? and whereunto shall I compare it?

Is less than

Acts 2:41
They therefore who gladly received his discourse were baptised: and there were added to them that day about three thousand souls.
Acts 4:4
But many of those who heard the word believed; and the number of the men was about five thousand.
Acts 5:14
But believers on the Lord were abundantly added to them, multitudes, both of men and women.)
Acts 19:20
So mightily did the word of God increase and prevail.
Acts 21:20
And they, when they heard it, glorified the Lord, and said unto him, Thou seest, brother, how many myriads there are of Jews who have believed; and they are all zealots for the law:
Revelation 11:15
And the seventh angel sounded; and there were great voices in heaven, saying, The kingdoms of the world are become our Lord's, and his Messiah's, and he shall reign for ever and ever.
Revelation 20:1
AND I saw an angel descending from heaven, having the key of the abyss [of hell], and a great chain in his hand: