Please, what does this mean, born of spirit? I think we all have a spirit
at child birth. How you say, born of spirit?
Hello Haruto2024, first off, welcome to CB :)
You are correct, we all have spirits, but many of the passages in the Bible (like the opening passage of John 3) that speak of being born of spirit are actually referring to being born of ~the~ Spirit (IOW, of the Holy Spirit).
As others have already mentioned, our natural/physical birth is not all that is required for us to become Christians, because we also need to be "born again or born from above/quickened/made alive" by God ~spiritually~ (when we first come into this world we are born alive "physically", but not "spiritually"). As the Scriptures tell us (speaking to Christians in this particlar case),
Ephesians 2 (NASB)
1 You were dead in your trespasses and sins,
2 in which you formerly walked according to the course of this world, according to the prince of the power of the air, of the spirit that is now working in the sons of disobedience.
3 Among them we too all formerly lived in the lusts of our flesh, indulging the desires of the flesh and of the mind, and were ~by nature~ children of wrath, even as the rest.
4 But God, being rich in mercy, because of His great love with which He loved us,
5 even when we were dead in our transgressions, made us alive together with Christ (by grace you have been saved).
If you take a look at John 3:10, you will see the Lord Jesus gently chiding Nicodemus (who was a Pharisee and was also considered to be "the teacher of Israel" at that time) for not already knowing/understanding what He was talking to him about in the 9 previous verses (about our need for/what it means for us to be quickened by God to spiritual life in Him/born again, for instance, because the best description that we have in the Bible for that is found in the OT .. see below .. this is God Himself speaking to us through the prophet Ezekiel, just FYI).
Ezekiel 36 (NASB)
25 “I will sprinkle clean water on you, and you will be clean; I will cleanse you from all your filthiness and from all your idols.
26 Moreover, I will give you a new heart and put a new spirit within you; and I will remove the heart of stone from your flesh and give you a heart of flesh.
27 I will put My Spirit within you and cause you to walk in My statutes, and you will be careful to observe My ordinances.”
There is more to this, but I think that I'll stop here to see if you have any thoughts and/or questions before I continue.
God bless you!!
--Papa Smurf
p.s. - here's an additional passage for you to consider about this that shows some of the differences between those who are already born again and saved by God (who are alive "spiritually", as a result .. see v's 12-13 & 15-16 below), and those who are not (those who are still "natural"/unsaved men and women, IOW .. see v14 below).
1 Corinthians 2 (NASB)
12 Now we have received, not the spirit of the world, but the Spirit who is from God, so that we may know the things freely given to us by God,
13 which things we also speak, not in words taught by human wisdom, but in those taught by the Spirit, combining spiritual thoughts with spiritual words.
14 But a natural man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised.
15 But he who is spiritual appraises all things, yet he himself is appraised by no one.
16 For WHO HAS KNOWN THE MIND OF THE LORD, THAT HE WILL INSTRUCT HIM? But we have the mind of Christ.