Matthew 13:32

This seed is indeed [one of] the smallest of all seeds, but when it is [fully] grown, it is larger than [other] plants, and [even] becomes a tree, so that the birds of the sky come and roost on its branches."

Acts 1:15

And during this time Peter stood up to speak to a gathering of about one hundred twenty persons.

Acts 21:20

And when they heard [all] this, they gave honor to God, then said to Paul, "Brother, you can see how many thousands of Jewish believers [in Christ] there are [everywhere] and all of them are eager to observe the [requirements of the] law of Moses.

Romans 15:18-19

For I will not dare to speak about anything, except what Christ has done through me in bringing about the obedience of the Gentiles. He accomplished this by my message and my deeds,

Revelation 11:15

Then the seventh angel sounded its trumpet, and there were loud voices in heaven saying, "The kingdom of the world has become the kingdom of our Lord [i.e., God] and of His Christ, and He will rule forever 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
And during this time Peter stood up to speak to a gathering of about one hundred twenty persons.
Acts 21:20
And when they heard [all] this, they gave honor to God, then said to Paul, "Brother, you can see how many thousands of Jewish believers [in Christ] there are [everywhere] and all of them are eager to observe the [requirements of the] law of Moses.
Revelation 11:15
Then the seventh angel sounded its trumpet, and there were loud voices in heaven saying, "The kingdom of the world has become the kingdom of our Lord [i.e., God] and of His Christ, and He will rule forever and ever."