Context of Jn 3:5 “born again”Amen! Context is king!
John1:26 John answered them, saying, I baptize with water: but there standeth one among you, whom ye know not; (John prepared the way by baptism)
John 2:6 And there were set there six waterpots of stone, after the manner of the purifying of the Jews, containing two or three firkins apiece. (Old covenant prefiguring of baptism, purification from sin)
John3:5 Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God. (Baptism)
*key
(Jn 3:5 is first put into practical practice in verse 22)
John 3:22 After these things came Jesus and his disciples into the land of Judaea; and there he tarried with them, and baptized. 23 And John also was baptizing in Aenon near to Salim, because there was much water there: and they came, and were baptized.(Baptism / water)
John 4:1 When therefore the Lord knew how the Pharisees had heard that Jesus made and baptized more disciples than John.
Born again means Baptismal regeneration! The means of Justification, union with God and the communion of saints by the grace of Jesus Christ the mediator of the new covenant!
Mk 16:16 matt 28:19 Jn 15:4 acts 2:38-39 acts 22:16 1 cor 16:13
gal 3:26 1 pet 3:20-21