Of course we do not know the name of God and I think we err if we think he needs one. We have always called God by his attributes. The Hebrew did the same.
"Then Moses said to God, 'Behold, I am going to the sons of Israel, and I will say to them, "The God of your fathers has sent me to you." Now they may say to me, "What is His name?" What shall I say to them?' God said to Moses, 'I AM WHO I AM'; and He said, 'Thus you shall say to the sons of Israel, "I AM has sent me to you."'"
John 8:56-59
"'Your father Abraham rejoiced to see My day, and he saw it and was glad.' So the Jews said to Him, 'You are not yet fifty years old, and have You seen Abraham?' Jesus said to them, 'Truly, truly, I say to you, before Abraham was born, I AM.' Therefore they picked up stones to throw at Him, but Jesus hid Himself and went out of the temple."
