Genesis 17:20

As for Ishmael, I have heard you. Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly. He will become the father of twelve princes, and I will make him a great nation.

Genesis 21:18

Get up, lift up the boy, and hold him in your hand. For I will make him a great nation."

Genesis 21:13

I will also make a nation of the son of the handmaid, because he is your seed."

Genesis 16:10-12

The angel of the LORD said to her, "I will greatly multiply your seed, that they will not be numbered for multitude."

Genesis 25:12-18

Now this is the history of the generations of Ishmael, Abraham's son, whom Hagar the Egyptian, Sarah's handmaid, bore to Abraham.

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
The angel of the LORD said to her, "I will greatly multiply your seed, that they will not be numbered for multitude."

Twelve

Genesis 25:12
Now this is the history of the generations of Ishmael, Abraham's son, whom Hagar the Egyptian, Sarah's handmaid, bore to Abraham.

And i

Genesis 21:13
I will also make a nation of the son of the handmaid, because he is your seed."

General references

Genesis 1:28
God blessed them. God said to them, "Be fruitful, multiply, fill the earth, and subdue it. Have dominion over the fish of the sea, over the birds of the sky, and over every living thing that moves on the earth."
Genesis 13:16
I will make your offspring as the dust of the earth, so that if a man can number the dust of the earth, then your seed may also be numbered.
Genesis 21:13
I will also make a nation of the son of the handmaid, because he is your seed."
Genesis 25:12
Now this is the history of the generations of Ishmael, Abraham's son, whom Hagar the Egyptian, Sarah's handmaid, bore to Abraham.