To be “born again” is to have a second birth; it is having the spirit of Jesus Christ in you. The first birth is when you are physically born into the world. When Adam and Eve sinned, humans became spiritually dead by being born with a sin nature and it separated us from God. Consequently, sin and death entered the world.
“Being born again, not of corruptible seed, but of incorruptible, by the word of God, which liveth and abideth for ever.” 1st Peter 1:23
Being born again means realizing you are a sinner and believing that Jesus is the Savior, who died and raised from the dead three days later. Jesus was perfect and once one is born again His (Jesus) righteousness is imputed onto the born-again believer who believes the gospel without adding works of self-righteousness.
“But to him that worketh not, but believeth on him that justified the ungodly, his faith is counted for righteousness. Even as David also describeth the blessedness of the man, unto whom God imputeth righteousness without works.” Romans 4:5-6
Jesus came down from heaven to save sinners, which is what we all are. We just all sin in different ways. To be born-again means you don’t have to work to obtain salvation. To be born twice means to receive salvation as a gift; it is not by any means something one earns on one's own merit.
“For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast." Ephesians 2:8-9
The ten commandments are the law. The commandments do help us lead a good life. Nevertheless, the main purpose of the ten commandments is to take a look in the mirror by showing our reflection of how truly sinful we are. The commandments main purpose is to lead sinners to come to repentance by faith in Jesus.
“Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith. But after that faith is come, we are no longer under a schoolmaster.” Galatians 3:24-25
What does it mean to repent? When people think of the word “repent,” most people think of phrases: “to turn from your sins” or “to turn over a new leaf.” The word repent in the Bible derives from the Greek word,metanoia, which means “a change of mind.” When Jesus says to repent, He means a change of mind of one’s unbelief.
“And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.” Mark 1:15
All in all, being a born-again Christian is not going to church every Sunday. Being born twice is not a religion. Being born again is all about trust: acknowledging our sins, trusting in God, and trusting in the will of God. The prophecies of the Old Testament all the way to the New Testament leads to Jesus being the lamb of God who takes away the sins of the world. My Savior is also my best friend. Love and the promises Jesus made, is what being born twice is all about.
“There was a man of the Pharisees, named Nicodemus, a ruler of the Jews: The same came to Jesus by night, and said unto him, Rabbi, we know that thou art a teacher come from God: for no man can do these miracles that thou doest, except God be with him. Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God. Nicodemus saith unto him, How can a man be born when he is old? can he enter the second time into his mother's womb, and be born? 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. That which is born of the flesh is flesh; and that which is born of the Spirit is spirit. Marvel not that I said unto thee, Ye must be born again.” John 3:1-7