Jesus also said unless one is born again he CANNOT see the kingdom of God. David, Moses and Abraham, were they born again, Posses the Spirit?
And he told how one can be born again
John 3:14–15 (KJV 1900) — 14 And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up: 15 That whosoever believeth in him should not perish, but have eternal life.
as had John
John 1:12 (KJV 1900) — 12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:
(5) The “children of God.”—Those who are “begotten of God” are ipso facto “children of God” (tékna theoú,
Jn 1:12;
11:52;
1 Jn 3:1,
2,
10;
5:2).1
1 R. Law,
“Johannine, Theology, The,” ed. James Orr et al., The International Standard Bible Encyclopaedia (Chicago: The Howard-Severance Company, 1915), 1703.
CHILDREN OF GOD. Persons in this category are only those who of the fallen race are regenerated as a result of faith in Christ1
1 Merrill F. Unger,
“Children of God,” ed. R.K. Harrison, The New Unger’s Bible Dictionary (Chicago: Moody Press, 1988).
Children of God (tekna theou). In the full spiritual sense, not as mere offspring of God true of all men (Acts 17:28). Paul's phrase huioi theou (Galatians 3:26) for believers, used also by Jesus of the pure in heart (Matthew 5:9), does not occur in John's Gospel (but in Rev. 21:7). It is possible that John prefers ta tekna tou theou for the spiritual children of God whether Jew or Gentile (John 11:52) because of the community of nature (teknon from root tek-, to beget). But one cannot follow Westcott in insisting on "adoption" as Paul's reason for the use of huioi since Jesus uses huioi theou in Matthew 5:9. Clearly the idea of regeneration is involved here as in John 3:3.
Word Pictures in the New Testament.
Vincent agrees
Sons (τέκνα)
Rev., more correctly, children. Son is υἱός. Τέκνον, child (τίκτω, to bring forth), denotes a relation based on community of nature
Word Studies in the New Testament.
τέκνα θ. γενέσθαι] The spiritual life owes its beginning to a birth from above, ch. 3:3–7. And this birth is owing to the Holy Spirit of God; so that this is equivalent to saying, ‘As many as received Him, to them gave He His Holy Spirit.’ And we find that it was so: see Acts 10:44.
Henry Alford, Alford’s Greek Testament: An Exegetical and Critical Commentary (vol. 1; Grand Rapids, MI: Guardian Press, 1976), 684.