Genesis 17:20

And for Ishmael, I have heard thee: Behold, I blessed him and made him fruitful, and I multiplied him with might exceedingly: twelve chiefs shall he beget, and I will give him into a great nation.

Genesis 21:18

Arise, lift up the child, and fasten thy hand upon him; for I will make him into a great nation.

Genesis 21:13

And also the son of this maid-servant, I will make him into a nation, for he is thy seed.

Genesis 16:10-12

And the messenger of Jehovah will say to her, Multiplying, I will multiply thy seed, and it shall not be counted for multitude.

Genesis 25:12-18

These the generations of Ishmael, son of Abraham, whom Hagar brought forth, the Egyptian, Sarah's maid, 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
And the messenger of Jehovah will say to her, Multiplying, I will multiply thy seed, and it shall not be counted for multitude.

Twelve

Genesis 25:12
These the generations of Ishmael, son of Abraham, whom Hagar brought forth, the Egyptian, Sarah's maid, to Abraham.

And i

Genesis 21:13
And also the son of this maid-servant, I will make him into a nation, for he is thy seed.

General references

Genesis 1:28
And God will praise them, and God will say to them, be fruitful and multiply, and fill the earth, and subdue it; and rule over the fish of the sea, and over the birds of the heavens, and over every living thing creeping upon the earth.
Genesis 13:16
And I made thy seed as the dust of the earth, that if a man shall be able to reckon up the dust of the earth, thy seed also shall be reckoned up.
Genesis 21:13
And also the son of this maid-servant, I will make him into a nation, for he is thy seed.
Genesis 25:12
These the generations of Ishmael, son of Abraham, whom Hagar brought forth, the Egyptian, Sarah's maid, to Abraham.