The Lord identifies Himself many times in the Bible as “the God of Abraham, Isaac and Jacob.” But Muslims rewrite the Bible (while claiming that it’s Jews and Christians that have), and says that it was Ishmael, not Isaac, who was the one chosen by God to be the father of God’s people.
they do more than rewrite the Bible....
Wasn't Abraham the father of the Jews? And due to his faithfulness in willing to sacrifice Isaac, God promised that the covenant would pass through to Isaac and not Ishmael? Genesis records that Isaac is Abraham's son, his only son on several occasions.