Genesis 12:2-3

I Will Make you into a great nation. I Will Bless you and make your name great. You shall become a Blessing. And I Will Bless those who bless you, and Curse those who curse you. Through you all the communities of the earth shall be Blessed.

Genesis 22:18

And all the nations of the world shall be Blessed through your descendants because you [Abraham] have hearkened to My Voice.

Exodus 19:5-6

Now, if you obey Me and keep my Covenant, then you shall be My special treasure among all the nations, for all the world is Mine. And you will be a kingdom of priests and a Holy nation to Me...

Isaiah 42:6

I, the Lord, Have Called you in Righteousness, and Will Hold your hand and Keep you. And I Will Establish you as a Covenant of the people, for a Light unto the nations.

Isaiah 60:2-3

For behold, darkness shall cover the earth, and a thick darkness the nations. But G-d Will Shine upon you. Nations shall then go by your Light and kings by your radiant illumination.

Zechariah 8:23

Thus Said the Lord of Hosts: In those days it will happen that ten men of all the [different] languages of the nations, will take hold, they will hold the corner of the garment of a Jewish man, saying, "Let us go with you, for we have heard that G-d Is With you."

History of the Jews
by Paul Johnson

One way of summing up 4,000 years of Jewish history is to ask ourselves what would have happened to the human race if Abraham had not been a man of great sagacity or if he had stayed in Ur and kept his higher notions to himself and no specific Jewish people had come into being. Certainly the world without the Jews would have been a radically different place. Humanity might eventually have stumbled upon all the Jewish insights, but we cannot be sure. All the great conceptual discoveries of the intellect seem obvious and inescapable once they have been revealed, but it requires a special genius to formulate them for the first time. The Jews had this gift. To them we owe the idea of equality before the law, both Divine and human, of the sanctity of life and the dignity of the human person, of the individual conscience and so of personal redemption; of the collective conscience and so of social responsibility; of peace as an abstract ideal and love as the foundation of justice and many other items which constitute the basic moral furniture of the human mind. Without the Jews, it might have been a much emptier place.