Genesis 12:2, I will bless you.YHVH promised to bless Abram by making him into a great nation and making his descendants as numerous as the stars of heaven (Gen 15:5).
Presently there are only 12 to 15 million Jews alive worldwide. There are currently over 100 times more Muslims alive than Jews. Many of them trace their lineage back to Abraham through Ishmael or Esau. Did YHVH fail to fulfill his promise to Abraham through Isaac and is his word not true?
If his promise were true, then where are the numerous descendants YHVH promised to Abraham?
Check out Romans 4:16; 9:8, 11; Galatians 3:7, 9, 14, 28–29; 6:16 and Ephesians 2:11–19 for the rather surprising, yet revealing answer to this question.