This Bible contradiction is from the Skeptic's Annotated Bible.
Genesis 22:17-18 View context
That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which [is] upon the sea shore; and thy seed shall possess the gate of his enemies;
And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.
Genesis 26:4 View context
And I will make thy seed to multiply as the stars of heaven, and will give unto thy seed all these countries; and in thy seed shall all the nations of the earth be blessed;
Deuteronomy 4:27 View context
And the LORD shall scatter you among the nations, and ye shall be left few in number among the heathen, whither the LORD shall lead you.