Gen 17 :4 the bible declares concerning what God said to Abraham, ” I will make you the father of many nations. Great Promise but God really did not tell Him that .In Romans 4: 17 , Paul made it clear what God really said .It reads “. I have made you a father of many nations “. Big difference. God calls the thing that be not as if they are not as if they will be.
In the original Aramaic which Abraham and his family spoke, there is no future tense in the language. When God blesses , He does not say you will be blessed, He says you are blessed. That’s how faith talks