As stated yesterday, I would repost my New Birth Analogy here that I posted on another thread. However, I did revise it some by including more scripture references than previously, and I edited out my specif reply to a poster on that thread.
As stated yesterday, there is a strong analogy between physical and spiritual birth. Please note these parallels:
1. Just as physical birth requires two people of the opposite sex to procreate, likewise scripture teaches that God's elect are born of the Spirit and the Word (Jn 1:13; 3:5-6; 6:63; Tit 3:5; 1Jn 3:9; 4:7; Eph 5:26-27; 1Pet 1:22-25).
2. The source of all Wisdom is God. The three persons of the Godhead are always spoken of in the masculine gender. And God's Wisdom is revealed to the world in his Word, and Wisdom itself is spoken of in the feminine gender (Prov 1:20-21); also the noun "truth" itself is in the same gender.
3. Just as a man and a woman are different from each other physically, likewise so the Spirit and the Word differ. The Holy Spirit is a living personality graciously bestowed upon God's elect and subjectively experienced by all believers in time and space (Rom 8:16; Heb 10:15; Jn 16:8-11), whereas [Gospel] Truth is objectively revealed to all in the holy scriptures but only received by those who have been made alive by the Spirit.
4. In John 3, The Holy Spirit is likened to the wind by Jesus, as He mysteriously and secretly goes hither and tither as he sovereignly wills. Conversely, God's objective Truth is either sought out by the sons of men as the Spirit leads them, or by us "pillars of the truth" as we seek out unbelievers, as He leads us, so that we can reveal Gospel Truth to them.
5. Physical life begins at conception, concealed in the woman's womb -- that life not being revealed to the world until many months later when actual birth takes place. Likewise, everyone us, whether we realize it or not, have had our own personal "on the road to Damascus" conversion experience, whether that experience was so subtle and nuanced that it went undetected (or virtually so) by us, or whether we had a more dramatic experience along the lines of the apostle Paul whereby we were more acutely aware of our conversion. Who can say that a believer cannot be conceived of the Spirit some time before he came to faith, and that the Spirit wasn't "concealed" in us until such time that we manifested our spiritual birth to the world by our confession of sin to God and confession of faith to the Gospel truth to the world? Many of us could have been spiritually alive as concealed "embryos" up until the time of our profession of faith in the Truth, at which time our spiritual birth was initially revealed to the outside world, as well as to ourselves. We very likely moved spiritually from the stage of "embryo" to "fetus" to a "babe in Christ" to maturity -- keeping mind that even at the initial stage we were made alive! Spiritual Life begins at conception, just as it does physically! The New Birth, on the other hand, is the ultimate manifestation of that Life to the world as our testimony to God's grace.
Finally, in regard to this analogy, I think Cornelius in Acts 10 makes for a highly interesting and intriguing case study that raises more than a few questions.