Jubilees 18:15

And he said: 'By Myself have I sworn, saith the Lord, because thou hast done this thing, and hast not withheld thy son, thy beloved son, from Me, that in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of heaven, And as the sand which is on the seashore. And thy seed shall inherit the cities of its enemies,