What does it mean to be a born again?

The classic passage from the Bible that answers this question is John 3:1-21. The Lord Jesus Christ is talking to Nicodemus, a prominent Pharisee and member of the Sanhedrin (a ruler of the Jews). Nicodemus had come to Jesus at night. Nicodemus had questions to ask Jesus.

As Jesus talked with Nicodemus, He said, "'I tell you the truth, no one can see the kingdom of God unless he is born again.' ‘How can a man be born when he is old?' Nicodemus asked. ‘Surely he cannot enter a second time into his mother's womb to be born!' Jesus answered, ‘I tell you the truth, no one can enter the kingdom of God unless he is born of water and the Spirit. Flesh gives birth to flesh, but the Spirit gives birth to spirit. You should not be surprised at my saying, ‘You must be born again'" (John 3:3-7).

The phrase "born again" literally means "born of God." Nicodemus had a real need. He needed a change of his heart-a spiritual transformation/renewal. New birth, being born again, is an act of God whereby eternal life is imparted to the person who believes (2 Corinthians 5:17; Titus 3:5; 1 Peter 1:3; 1 John 2:29; 3:9; 4:7; 5:1-4, 18). John 1:12,13 indicates that when we are born again, when we receive Jesus Christ as our Lord and Saviour, we become children of God.

The question logically comes, "Why does a person need to be born again?" The Apostle Paul in Ephesians 2:1 says, "And you He made alive, who were dead in trespasses and sins..." (NKJV). To the Romans in Romans 3:23, the Apostle wrote, "For all have sinned and fall short of the glory of God." So, a person needs to be born again in order to have their sins forgiven and have a relationship with God.

How does that come to be?