The teaching on the born-again doctrine—found primarily in John 3 but expanded by Paul, Peter, and John in later writings—has been prone to misunderstanding since Jesus Christ spoke to Nicodemus about it nearly two thousand years ago. In fact, Nicodemus immediately misconstrued what Christ meant, understanding His analogy on a purely physical level, as another literal birth. He was not alone in this. A study of Jesus' discourses throughout the book of John shows that people frequently interpreted His entirely spiritual instruction in a physical manner, and thus failed to grasp the truth He taught.
That Christ's teaching on being born again is pivotal is revealed in the fact that it is the first major discourse that John records. In addition, it is introduced with the words, "Most assuredly, I say to you" (NKJV) or "Verily, verily, I say unto thee" (KJV), a construction that announces that what follows is significant and weighty, urging us to pay close attention.
Even so, it is not necessary for us to understand all the particulars of the born-again doctrine to be saved, although a deeper understanding of it helps us to grasp how God perceives us once we experience the born-again event. This teaching reveals that God sees us as His children, already part of His Family Kingdom, and able to function as adults before Him in this world. Further, it shows that, to Him, we are a new creation embarking on a spiritual journey, in which we will grow in the grace and knowledge of Christ and transform into His image.
In turn, this doctrine should also teach us how to perceive ourselves once we are converted. We are not what we once were—spiritually dead to God and His way of life—but now we are alive in Christ, heirs of salvation, and free from spiritual bondage, able to pursue the holy, righteous character of our Savior. Jesus' teaching reveals that we are special to God, and at the same time, that we are responsible for what we have been given and under judgment, unlike the rest of the world.