Let me address the passive aggressive approach of yours since you TRIED to tell me something about how I word things to people. Your coy attitude is really the problem , and I do not speak like a cream puff to appease anyone.
It is a known fact that Moses is the one who wrote the Torah, your "Hebrew" teacher must have told you that. Who then relayed the history of Abraham to him? If there is about 420-430 years between Abraham and Moses, who inspired Moses to write about Abraham's life?
Here I will help you with this one too:
All Scripture is God-Breathed
…15From infancy you have known the Holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus. 16
All Scripture is God-breathed and is useful for doctrine, for conviction, for correction, and for training in righteousness, 17so that the man of God may be complete, fully equipped for every good work.…
What is the Breath of God?
John 20:22
22
When He had said this, He BREATHED on them and said, “Receive the Holy Spirit.
So it would seem that Moses prompted by the Spirit of God was inspired to write and GIVE US a recap of what took place in Abraham's life.
So If God told Moses about "Abram the Hebrew" do you think Abraham did not know of this? And since it is Abraham who is the first to be called this in scripture, don't you think God called him this?
Moses was NOT prophesying of future, he was giving a recounting of someones life who had already been. So God did call Abraham, then Abram, "Abram the Hebrew" because He called him this to Moses.
When and where did Moses write and receive the Torah?
From the Torah or Bible, you may have a different numbering in your bible Chp. verses.
Deuteronomy 4:44
This is the Teaching that Moses set before the Israelites:
Numbers 9:23
On a sign from the LORD they made camp and on a sign from the LORD they broke camp; they observed the LORD’s mandate at the LORD’s bidding through Moses.
It is tradition that Moses received the Torah while on Mount Sinai , but either way- wherever he wrote all the books, whether upon the mountain and some among the people He wrote about Abraham- inspired by God to do so.