1 Corinthians 15:50 I tell you this, brothers: flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable.
John 3:3 Jesus answered him, “Truly, truly, I say to you, unless one is born again he cannot see the kingdom of God.”
John 3:5 Jesus answered, “Truly, truly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God.
Ephesians 1:9 making known to us the mystery of his will, according to his purpose, which he set forth in Christ
Essentially, this means to have new life. A theological term for this is regeneration. It isn’t simply a moral or religious reform, but the bringing of new life. “To belong to the heavenly kingdom, one must be born into it. This isn’t something that we can do to ourselves. When Jesus had says “Unless you are born again, you cannot see the kingdom of God” then we might think, “I can somehow do this myself”, like a man might wash himself; but he could never birth himself. God’s great plan and purpose which was once hidden but is now this mystery is revealed to us in Jesus.
Why is it that this mystery which was hidden and now revealed is seen by some and not by others? Are they who understand the mystery smarter, more intelligent, or more worthy? Absolutely NO they are not. So why then, once the veil has been taken away, can this mystery no longer be a mystery to some and to others it is still an unfathomable mystery? Think about creation and the responses man has given to explain this mystery. This certainly is a mystery. How can something be brought into existence – (being made from nothing)? God created. Period. He made all there is. He created light, placed the stars and planets in all the of the universe, all of the elements of chemistry, and all of the physics that control interactions between them, life (plant, animal, mankind), spiritual heavenly beings, etc…….. How do we know this? Because He made it know by telling us. He revealed it both to our hearts and through His Word. It is through belief that though we don’t know how exactly, but we do know who. Belief in God takes away the searching of both how and who. Yet, for those who do not believe it is still a mystery, and billions if not trillions of dollars are spent trying to figure out who, when, and how all of creation came into being. With all of this money and with thousands of intelligent brains searching the best they come up with is a big bang. It is easier for some to believe this than in God who created it all. The mystery remains for these.
The same is true for the mystery of new birth, born again, a new creation. To those who believe it is a mystery revealed soul, heart, and mind deep. They are changed forever and await their final new eternal life in heaven. Yet, once again, those who do not believe (trust in, cling to, rely on Jesus Christ by faith) will try to sort out this mystery by every means possible to earn it or be worthy of it. It is not by works of the flesh, or the mind of the wise, but by the power of God through Jesus Christ in grace, mercy, and love. To those who believe, the mystery is no longer a mystery. They absolutely know they are born again. If you do not know this with absolute certainty, relinquish all hope in self and self-reliance and surrender to the grace, mercy, and love, found only in and through Jesus Christ, and the vail of the mystery of being born again, new birth, new creation, will be removed forever.