Born of God not of flesh means Children of God reborn in Christ born again by a Spiritual rebirth. Through Jesus’ BLOOD is reborn not by natural birth of flesh by women. Nicodemus asked Jesus: Crawl back into the mother’s womb to be born again? Nicodemus Pharisee member of Sanhedrin in Gospel of John visits Jesus at night to discuss Jesus’ teachings. John 3:1–21 says Nicodemus ruler of the Jews asks Jesus if he must enter second time into his mother’s womb and be born?” Jesus answered, “I say to you unless one is born of water and Spirit cannot enter kingdom of God. People ask these same questions in Scripture about being born again. Jesus said being born again is not crawling back into a mother’s womb but to be Spiritually regenerated in Christ to be saved in God’s Son Jesus accept Jesus teaching in Bible. This is God’s ENTRY requirement to heaven to live in eternal life reunited with all loved ones in God’s Presence. A person born again accepts Jesus as Lord and lives as the Bible says.All in Christ in Rapture with resurrected dead go into heaven and escape GREAT TRIBULATION WRATH of God that takes place. This what born again means in the Bible you become the Child of God. After DNA of sin contaminated mankind you need detox through Jesus Blood to be redeemed. Believe and receive Jesus Christ as personal Saviour. People are God’s creation but not all are God’s CHILDREN. So what must you do to be born again according to Jesus in Bible? To enter kingdom of God John 3:3-8 says God’s True Light Jesus shines on people to be saved in the world. He came into the world but the world He created did not recognise him. He came to his own creation and own people didn’t accept Him. All ACCEPT him He gave them the power to become the Children of God so all those who truly believe in Him their birth does not depend not on the course of nature or impulse plan of man but on God. Christ offspring not birth by blood or of flesh and man but God CHOOSES subjects of HIS KINGDOM in ChristTo be born, not of blood, nor of the will of the flesh, nor of the will of man, but of God is to be again. God in His mercy allows people the freedom of choice to make up their own minds to become the citizens of heaven in HIS KINGDOM. HE sent Gospel message from time of Adam and Eve to save all mankind from HIS WRATH anger destroying one third of the earth. God rebuilds earth and comes to live on the perfect earth in future. HE warned in Daniel 9-12 of the destruction taking place till GREAT TRIBULATION.
John 1:12 says all those who receive and believe in Jesus Name become children of God. 13 Its not by birth, blood or flesh of man but of God, not based on natural descent of human decision but through birth out of God. Joint heirs of Christ are His Blood kindreds not by natural flesh but by predestination of God’s salvation.