If you had Christian friends whose native tongue is Arabic or Moslem friends they might help you overcome the stumbling block.There is only one God of Abraham, Isaac, and Jacob. The nonChristian religious traditions of Jews, Samaritans, and Moslems profess to adore and worship the one and only God who revealed himself to Abraham, Isaac, and Jacob. Let's make this real simple....
Is Jehovah the same in the OT and NT?
Yes or no are the only two options.