The "first" saved were Jewish, the eleven disciples when Jesus appeared through a locked door ( and possibly also Jewish women) and said " receive ye the Holy Ghost" John 20:22, and the 120 in Acts 1, none of whom were Greeks. What don't you understand? Read the Bible to get it right, not just so YOU can be right.
What don't I understand is the stuffs you read into the text. Nobody received the Holy Spirit until Acts 2. Lord Jesus explicitly taught that he must depart so the Holy Spirit can come, Jn. 16:7, was he contradicting himself? Or you?
Nevertheless I tell you the truth. It is to your advantage that I go away; for if I do not go away, the Helper will not come to you; but if I depart, I will send Him to you.