1 Kings 3:8

And your servant has round him the people of your selection, a people so great that they may not be numbered, and no account of them may be given.

Genesis 15:5

And he took him out into the open air, and said to him, Let your eyes be lifted to heaven, and see if the stars may be numbered; even so will your seed be.

Genesis 13:16

And I will make your children like the dust of the earth, so that if the dust of the earth may be numbered, then will your children be numbered.

Genesis 22:17

That I will certainly give you my blessing, and your seed will be increased like the stars of heaven and the sand by the seaside; your seed will take the land of those who are against them;

Exodus 19:5-6

If now you will truly give ear to my voice and keep my agreement, you will be my special property out of all the peoples: for all the earth is mine:

Deuteronomy 7:6-8

For you are a holy people to the Lord your God: marked out by the Lord your God to be his special people out of all the nations on the face of the earth.

1 Samuel 12:22

For the Lord will not give his people up, because of the honour of his name; for it was the Lord's pleasure to make of you a people for himself.

1 Chronicles 21:2

And David said to Joab and the captains of the people, Now let all Israel, from Beer-sheba to Dan, be numbered; and give me word so that I may be certain of their number.

1 Chronicles 21:5-6

And Joab gave David the number of all the people; all the men of Israel, able to take up arms, were one million, one hundred thousand men; and those of Judah were four hundred and seventy thousand men, able to take up arms.

1 Chronicles 27:23-24

But David did not take the number of those who were under twenty years old, for the Lord had said that he would make Israel like the stars of heaven in number.

Psalm 78:71

From looking after the sheep which were giving milk, he took him to give food to Jacob his people, and to Israel his heritage.

Treasury of Scripture Knowledge

Summary

And thy servant is in the midst of thy people which thou hast chosen, a great people, that cannot be numbered nor counted for multitude.

Bible References

Thy people

Exodus 19:5
If now you will truly give ear to my voice and keep my agreement, you will be my special property out of all the peoples: for all the earth is mine:
Deuteronomy 7:6
For you are a holy people to the Lord your God: marked out by the Lord your God to be his special people out of all the nations on the face of the earth.
1 Samuel 12:22
For the Lord will not give his people up, because of the honour of his name; for it was the Lord's pleasure to make of you a people for himself.
Psalm 78:71
From looking after the sheep which were giving milk, he took him to give food to Jacob his people, and to Israel his heritage.

Cannot

Genesis 13:16
And I will make your children like the dust of the earth, so that if the dust of the earth may be numbered, then will your children be numbered.
Genesis 15:5
And he took him out into the open air, and said to him, Let your eyes be lifted to heaven, and see if the stars may be numbered; even so will your seed be.
Genesis 22:17
That I will certainly give you my blessing, and your seed will be increased like the stars of heaven and the sand by the seaside; your seed will take the land of those who are against them;
1 Chronicles 21:2
And David said to Joab and the captains of the people, Now let all Israel, from Beer-sheba to Dan, be numbered; and give me word so that I may be certain of their number.
1 Chronicles 27:23
But David did not take the number of those who were under twenty years old, for the Lord had said that he would make Israel like the stars of heaven in number.

General references

Genesis 12:2
And I will make of you a great nation, blessing you and making your name great; and you will be a blessing:
Genesis 13:16
And I will make your children like the dust of the earth, so that if the dust of the earth may be numbered, then will your children be numbered.
Deuteronomy 1:12
How is it possible for me by myself to be responsible for you, and undertake the weight of all your troubles and your arguments?

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain