@Dave...
Thats wrong, Cornelius was already born again b4 hearing the Gospel and believing. What fell upn him in Acts 10 wasn't the newbirth
See you cant fear God without the Holy Spirit in you, man by nature, unregenerate has zero fear of God friend Rom 3:18
18 There is no fear of God before their eyes. But whats the testimony of Cornelius Acts 10:2
2
A devout man, and one that feared God with all his house, which gave much alms to the people, and prayed to God alway.
This was said way b4 he even heard the preaching of Peter and the Spirit falling upon him.
Still future, just before the cross.
John 7:38-39 He who believes in Me, as the Scripture has said, out of his heart will flow rivers of living water." But this He spoke concerning the Spirit, whom those believing in Him would receive; for the Holy Spirit was not yet given, because Jesus was not yet glorified.
How's this for understanding? Just before His ascension Jesus said this to His disciples.
Luke 24: 44-49 Then He said to them, "These are the words which I spoke to you while I was still with you, that all things must be fulfilled which were written in the Law of Moses and the Prophets and the Psalms concerning Me." And He opened their understanding, that they might comprehend the Scriptures. Then He said to them, "Thus it is written, and thus it was necessary for the Christ to suffer and to rise from the dead the third day, and that repentance and remission of sins should be preached in His name to all nations, beginning at Jerusalem. And you are witnesses of these things. Behold, I send the Promise of My Father upon you; but tarry in the city of Jerusalem until you are endued with power from on high."
Remembers, the Spirit of Christ must be in them.
John 14:16-18 And I will pray the Father, and He will give you another Helper, that He may abide with you forever-- the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows Him; but you know Him, for He dwells with you and will be in you. I will not leave you orphans; I will come to you.
25-26 "These things I have spoken to you while being present with you. But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you.
John 15:26 "But when the Helper comes, whom I shall send to you from the Father, the Spirit of truth who proceeds from the Father, He will testify of Me.
John 16:7-9, 12-13 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. And when He has come, He will convict the world of sin, and of righteousness, and of judgment: of sin, because they do not believe in Me;... I still have many things to say to you, but you cannot bear them now. However, when He, the Spirit of truth, has come, He will guide you into all truth; for He will not speak on His own authority, but whatever He hears He will speak; and He will tell you things to come.