Genesis 12:2-3 tells us about God's promise to Abraham. God promised Abraham that he will make his tribe great and he will bless him. What this verse tells us is that if we obey God and do whatever he wishes, he will bless us and protect us. When God told Abraham that he must offer his only son, he followed him and because he obeyed God. Because of that, he is given such blessing, that his tribe will be as many as the stars in the sky.
