Genesis 17:20

As for Ishmael, I have given ear to your prayer: truly I have given him my blessing and I will make him fertile and give him great increase; he will be the father of twelve chiefs, and I will make him a great nation.

Genesis 21:18

Come, take your child in your arms, for I will make of him a great nation.

Genesis 21:13

And I will make a nation of the son of your servant-woman, because he is your seed.

Genesis 16:10-12

And the angel of the Lord said, Your seed will be greatly increased so that it may not be numbered.

Genesis 25:12-18

Now these are the generations of Ishmael, the son of Abraham, whose mother was Hagar the Egyptian, the servant of Sarah:

Treasury of Scripture Knowledge

Summary

And as for Ishmael, I have heard thee: Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation.

I have blessed

Twelve

Bible References

I have blessed

Genesis 16:10
And the angel of the Lord said, Your seed will be greatly increased so that it may not be numbered.

Twelve

Genesis 25:12
Now these are the generations of Ishmael, the son of Abraham, whose mother was Hagar the Egyptian, the servant of Sarah:

And i

Genesis 21:13
And I will make a nation of the son of your servant-woman, because he is your seed.

General references

Genesis 1:28
And God gave them his blessing and said to them, Be fertile and have increase, and make the earth full and be masters of it; be rulers over the fish of the sea and over the birds of the air and over every living thing moving on the earth.
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 21:13
And I will make a nation of the son of your servant-woman, because he is your seed.
Genesis 25:12
Now these are the generations of Ishmael, the son of Abraham, whose mother was Hagar the Egyptian, the servant of Sarah:

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