Matthew 13:32

it is the smallest of all seeds, but when it has grown it is the greatest of shrubs and becomes a tree, so that the birds of the air come and make nests in its branches."

Acts 1:15

In those days Peter stood up among the brethren (the company of persons was in all about a hundred and twenty), and said,

Acts 21:20

And when they heard it, they glorified God. And they said to him, "You see, brother, how many thousands there are among the Jews of those who have believed; they are all zealous for the law,

Romans 15:18-19

For I will not venture to speak of anything except what Christ has accomplished through me to win obedience from the Gentiles, by word and deed

Revelation 11:15

Then the seventh angel sounded his trumpet, and there were loud voices 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."

Treasury of Scripture Knowledge

Summary

Which indeed is the least of all seeds: but when it is grown, it is the greatest among herbs, and becometh a tree, so that the birds of the air come and lodge in the branches thereof.

Bible References

The least

Acts 1:15
In those days Peter stood up among the brethren (the company of persons was in all about a hundred and twenty), and said,
Acts 21:20
And when they heard it, they glorified God. And they said to him, "You see, brother, how many thousands there are among the Jews of those who have believed; they are all zealous for the law,
Revelation 11:15
Then the seventh angel sounded his trumpet, and there were loud voices 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."